Merge sort program in java using scanner class

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Java program to bubble sort: This code sorts numbers inputted by user using Bubble sort algorithm. Jun 5, 2024 · Selection Sort Algorithm Java – Using Array. Repeatedly merge sublists to produce new sorted sublists until there is only 1 sublist remaining. Write a C program to plot and analyze the time complexity of Bubble sort, Insertion sort and Selection sort (using Gnuplot). The implementation of the MERGE function is given as follows -. Like Merge Sort, QuickSort is a Divide and Conquer algorithm. Sep 30, 2020 · To fascilitate the algorithm, we'll be using two methods - mergeSort() which will partition the collection and recursivelly call itself, and its helper method, merge() which will merge the results in the correct order. To swap the elements based on the comparison between the two string. A class called Ascending_Order is defined. The main method is created with a Scanner object and two integer variables: n and temp. Using Command Line Arguments. Scanner. Procedure to develop the Java program to find the average, 1) Take numbers as input and store them into an array. #1) Declare an array myArray of length N. Each of the introduced number should be separated by ENTER key. numbers = inputNumbers; Sep 21, 2022 · The read() method of BufferedReader class in Java is of two types: 1. Output: Explanation For Above Algorithm: 1) The entered numbers will store in to the int array a [] using for loop with the structure for ( i=0; i < n; i++). Jan 10, 2024 · Prerequisite:Comparison among bubble sort, insertion sort and selection sort. While dividing the array, the pivot element should be positioned in such a way that elements less than pivot are kept on the left side and elements greater than pivot are on the right side. sort () and reverseOrder () for ascending and descending order respectively. util package is used to read input data from different sources like input streams, users, files, etc. We are using Scanner class to get the input from user. print ( "Enter the Size of Array: " ); n = scan. For printing the sorted array, we have used for loop. Here are examples of using the merge sort algorithm in Java programming. //method until the value of left and right becomes 1. Here, current element is compared with the next element. Dec 30, 2022 · The close() method ofjava. Using CompareTo () method compare one string with the rest of the strings. It is the simplest way to get input in Java. util package. *; public class Jun 4, 2024 · The compiler has also been added so that you can execute the programs yourself. I can get the final sort output in order also. String is provided to the nextInt () method. So we will be making sorting algorithms as functions and all the algori Sep 4, 2023 · We often need to sort array while programming. To learn more, visit Merge Sort Algorithm. The methods used in this article are as follows: Using Standard Method. math. The answer to the above recurrence is O (n*Log n). Apr 15, 2012 · Ask questions, find answers and collaborate at work with Stack Overflow for Teams. This read() method reads one character at a time from the buffered stream and return it as an integer value. *; import java. Jan 31, 2016 · All together: Split into 2 threads. 2) If ch matches with case 1 then that block will be executed, if ch=2 then case 2 blocks will be executed. Syntax: public int read() throws IOException Overrides Jun 4, 2024 · The Factorial program in Java, we have written the following program in five different ways, using standard values, using while loop, using for loop, u sing do while loop, using method or function, using recursion. This is what I have so far. * Sorts an array of data from low to high. #3) If N is greater than 1, Call subroutine merge (myArray, left, middle, right) to merge arrays sorted in the above steps. Way 2: Using sort () method of Arrays class. My full code is as follows: In order to merge two arrays, we find its length and stored in fal and sal variable respectively. Example 1. Mar 22, 2015 · I've written this Java code to implement merge sort: import java. 3) The elements in the array are 9, 5, 0, 1, 8. Output: Example 2: Find element index using scanner. Now let’s understand the code in detail. 2) Reverse res=new Reverse (array,n), creating the Reverse class object res by passing the array, number of elements in the array. So, the inputs of the MERGE function are A [], beg, mid, and end. Both the array must be received by user at run-time Jun 4, 2024 · According to the Pythagoras theorem, a^2 + b^2 = c^2. Stack Exchange Network Stack Exchange network consists of 183 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn The important part of the merge sort is the MERGE function. For 1st iteration, the inner loop compares the number with the previous number, if the previous number is greater than Jun 5, 2024 · 1) We are searching the key in the array. Let's start off with mergeSort(): public static void mergeSort(int[] array, int low, int high) {. Let us discuss all four of them and propose a code for each one of them. Example 2. Oct 12, 2018 · The close() method ofjava. Next, we are comparing elements of the array so that we can insert them in the proper position using the insertion sort method. In this program, user is asked to enter the number of elements that he wish to enter. Jun 5, 2024 · 1) Condition for multiplication of two matrices is -1st matrix column number equal to 2nd matrix row number. *; Mar 7, 2024 · MergeSort Algorithm In Java. String s = new String (“GeeksforGeeks”); Note: As we know that String is immutable in java, hence in third step we have to create a new string. The “Θ”-symbol just means that it is a function of n * lg (n). Method 5: Using Quick FREE Education – Knowledge is a right, not a privilege. You start by calling the mergeSort method as shown on line 51 with the following input parameters: The array to be sorted; The length of the array to be sorted Merge Sort works on Divide and Conquer algorithm technique. The mod of a number can be regarded as the absolute value of any given number. For this, we use inbuilt method provided by Java in Arrays class i. and strings. The implementation of Merge Sort given above is a recursive one. In this example, we will take inputs from users to initialize the array size and its element using java. charAt(0). Here is the source code of the Java Program to Implement Merge Sort on n Numbers Without tail-recursion. Jun 5, 2024 · Perfect Number – Using While Loop. Say Scanner in = new Scanner(System. Merge two arrays in Java - basic version; Merge two arrays in Java - complete version; Merge two arrays into the third array and sort in ascending order; Merge two arrays in descending order; Merge Two Arrays in Java - Basic Version. For example let's take an array as an input: Oct 14, 2018 · In this java tutorial, we are sorting an array in ascending order using temporary variable and nested for loop. 2) Here i indicates row number and j indicates column number. compareTo() method. nextInt (), and store it in the variable ch. The following Java program to print the area of a circle has been written in five simple different ways, static method, using constructor, Jan 15, 2018 · 1. e sort(). The Scanner class is used to get user input, and it is found in the java. Divide the unsorted list into n sublists, each containing 1 element (a list of 1 element is considered sorted). nextInt(); String str[] = new String[count]; Scanner scan2 = new Scanner(System. Mar 28, 2023 · The program uses the Scanner class from the java. Below programs illustrate the above function: Program 1: // Java program to illustrate the // c Apr 27, 2014 · I need help with using merge sort with a string array. 2) Read row,column numbers of matrix1, matrix2 and check column number of matrix1= row number of matrix2. Mar 17, 2024 · The algorithm sorts the input array in-place (by rearranging the items within the array A). nextInt (); The Scanner class of the java. DataFlair, the leading Ed-tech company, offers industry-grad free certification courses on technical and non-technical subjects. e ch=1 represents Fahrenheit to Celsius,ch=2 represents Celsius to Fahrenheit. Oct 22, 2017 · The recursion call stack of the merge sort however is a little hard to grasp at the first go. In a menu driven program, generally we have to execute body of menu loop at least once. dmMark = dmMark; } } I've seen people use Comparators to sort ArrayLists of object's properties. To find the income tax, we will first require to know the income as, based on the range in which the income falls, the amount to be paid and the calculations vary. Here is a simple explanation about merge sort on how to it will divide and merge elements. While loop iterates until the condition i>0 is false, i. This is my Sorts class which has 3 different ways to sort int, Objects and ArrayLists. in); //User is entering the strings and they are stored in an array Merge Sort Algorithm. public static void selectionSort(int[] items) {. This sort () Method accepts the list object as a parameter and it will return an ArrayList sorted in ascending order. Method 3: Using Merge Sort. Recursion need local variables which means returning the result from the methods. for i=length of the array to i>0 and j=0 to j<length of the array. Due to these factors, the Merge Sort has this unique behavior. In both the cases sort() method sequentially sort the elements of an array. May 14, 2013 · This short program makes a binary file called data. Lets say, we have an array 4,0,6,1,5,2,3. This example allows one to enter size and items and perform selection sort on arrays using nested for loops. Merge two arrays in Java using Scanner. Swing was created to provide more powerful and flexible components than Java AWT (Abstract Window Toolkit). 1) In quick sort, divide the array into partitions and sort each partition, then we will get the sorted array. May 30, 2024 · Sorting the remaining two sub-lists with n/2 elements takes 2*O (n/2) each. May 13, 2022 · Java program for merge sort: Follow the steps below. 3. Print the Sorted Names in an Alphabetical Order. The methods used in this article are as follows to calculate Java Modulus. . Oct 21, 2013 · I was asked to sort and search an array. Use Scanner class methods as per your data type to read input from user. In this tutorial, we will learn about the Java Scanner and its methods with the help of examples. 1 (A)Ascending Order. if the length of the string is zero then cursor terminates the loop. Where “T (n)” is the time it takes to run the algorithm for the list or array. io. Let's sort an array using the sort() method of the Arrays class. bin file and do an external merge sort on it all? import java. The following program shows the sorting in merge sort fashion Apr 7, 2017 · This means all the recursive calls are overwriting the values. I can only use the . Syntax: public void close() Return Value: The function does not return any value. Thus, the multiple ways to calculate the hypotenuse of a right triangle in Java programming are as follows: Using Standard Method. Scanner; ////100 80 90 70 60 40 50 1. String s concatenates s2 and s1 using the + operator and also adds a comma (,) char between the two strings. I would recommend using selection sort or insertion sort for what you are trying to accomplish. 2) The for loop iterates from j=0 to j< length of the string. test. Time needed: 3 minutes. Basically it’s divide and conquer approach. In this short tutorial, we’ll see how we can efficiently merge sorted arrays using a heap. 4) Run the for loop. Example#2. After that, we create a new integer array result which stores the sum of length of both arrays. bin with a bunch of randomly generated items that are 1024 bytes each. There are several algorithms that are used for sorting and one amongst them is Bubble sort. Since our problem statement is to use a heap to merge the arrays, we’ll use a min-heap to solve our problem. So this article on Bubble Sort in Java will help you understand this concept in detail. Apr 11, 2023 · Scanner class in Java supports nextInt(), nextLong(), nextDouble() etc. This will also mean the methods can be static and will make your code a lot cleaner. Then Reverse class constructor Reverse (int [] a,int n) will be executed. If you have any doubts related to the code that we shared below do leave a comment here at the end of the post our team will help Feb 13, 2011 · I have been trying all weekend to find a way to get my program to answer a question using a sting with a scanner class. However, they use it for built-in sorting like the following line (which is straightforward): Collections. For example I need to get my program to answer a question like. Scanner class closes the scanner which has been opened. left=mergeSort(left); right=mergeSort(right); Dec 13, 2022 · In this tutorial, we will go over Merge Sort Algorithm. where the first 24 bytes of each item is the key. In this case do-while loop is very helpful to create menu driven program. But there is no nextChar() (See this for examples) To read a char, we use next(). In Java 8, there is a new API introduced for sorting which is Parallel Sorting. Merge sort uses additional storage for sorting the auxiliary array. 2) While loop prints the character of the string which is at the index (i-1) until i>0. util package used for obtaining the input of the primitive types like int, double, etc. 3) Sort (a,l,m) calls the sort method and again divided in to partitions until there is no Apr 12, 2016 · The one you were trying to use is called "Bubble Sort" and is very expensive on large data sets unless they are somewhat ordered. * pre: none. In our example, we will use the nextLine() method, which is used to read Strings: Quicksort in Java. com Merge Sort in Java. nextInt();, similarly use others. public class Sorts {. To get the input of income at runtime, we make use of the Scanner class of Java. Take two adjacent pairs of sub list and merge them as list of 2 elements. The variable ch assigned with the charter which is at the jth position in the string. If you were new to java or at the beginning stage then, Check – 500+ simple Java programs for beginners. 1) Here i=length of the given string. "); Jun 5, 2024 · The parameters s1 and s2 represent the values passed in by the arguments str1 and str2. If the scanner is already closed then on calling this method, it will have no effect. Once you're done, type in 0. 4. Below programs illustrate the above function: Program 1: // Java program to illustrate the // c Jan 8, 2024 · 1. in);. Do check it out. Jul 10, 2018 · import java. Stacks are LIFO (Last in First Out). Merge sort uses three arrays where two are used for Jun 5, 2024 · Insertion Sort Java – Using Array. Dec 13, 2023 · In Java, Scanner is a class in java. Method calls are executed using Stacks, so the last method call is executed first. The Java Scanner class is widely used to parse text for strings and primitive types using a regular expression. The merge sort algorithm is based on the principle of divide and conquer algorithm where a problem is divided into multiple sub-problems. Here we cover five simple ways to find out the average of marks in Java programming. To use the Scanner class, create an object of the class and use any of the available methods found in the Scanner class documentation. 3) Read the key value and search for that key in the array. So the code of menu driven system using do-while loop in Java is following. nextLine (), and store in the variable “s” which is string type. so how do i read each item from the data. It should sort the input from lowest to highest then print the index number and its corresponding integer after sorting. 1) The number which is equal to the sum of its divisors is called a perfect number. The program is successfully compiled and tested using IDE IntelliJ Idea in Windows 7. String s = “GeeksforGeeks”; Using new keyword. The Java Scanner class breaks the input into tokens using a delimiter which is whitespace by default. Overview. In bubble sort algorithm, array is traversed from first element to last element. Java Swing is an API for providing graphical user interface elements to Java Programs. Method 4: Using Insertion sort. I've also simplified a few things. arrayList, new CustomComparator()); However, I want to use my mergesort functions that I wrote in my Student class. The sorting the array was simple and my code worked but then whenever I try to call the binary search method it works for the first element in the array but gives me "-1" as a result. Repeat step 2 process till merging single sorted list of all elements. import java. 2) Printarray (int a []) will print the numbers, from the index i=0 to i<length of the array. Output: Example 3: Remove elements Using the remove () Method. Scanner; import java. /** <Selection Sort 1>. The question is, write a Java program to merge two arrays. Calling a method again within the. #4) Exit. May 27, 2024 · Pre-requisite: Merge Sort, Insertion Sort Merge Sort: is an external algorithm based on divide and conquer strategy. It is one of the most popular sorting algorithms. Use one of the following sorting algorithms to arrange an array in ascending order (without using the built-in “sort ()” method): Method 1: Using Bubble Sort. Here ch represents the type of conversion i. Jun 5, 2024 · Using Array. Jun 5, 2024 · Implement Quick Sort – Using Array. Way 1: Using loops. 1) Read the entered string using scanner class object sc. a) Insert the elements at matrix1 using two for loops: Operations that index into the list will traverse the list from the beginning or the end, whichever is closer to the specified index. However, as a newbie, we share the program in 5 different ways. Using a for loop, we are reading n elements from standard input into an array named arr. Now, copy each elements of both arrays to the result array by using arraycopy () function. Scanner; class BubbleSort { public static void main (String We can create a java program to sort array elements using bubble sort. Create an object of Scanner class. Pick a random element as pivot. Using Scanner Class. Let’s write and execute this code to check the output. lang. The program output is also shown below. T(n) = 2T(n/2) + O (n) 2T (n/2) is for the time required to sort the sub-arrays, and O (n) is the time to merge the entire array. Insertion Sort in Java using while Loop. May 1, 2023 · According to Wikipedia "Merge sort (also commonly spelled mergesort) is an O (n log n) comparison-based sorting algorithm. After the procedure has finished, the input array A contains a permutation of the input sequence but in sorted order: INSERTION-SORT(A) for i=2 to A. Output: Jan 4, 2014 · It should then print NO if there are duplicates and YES if all integers are unique. May 22, 2023 · Java Swing is a part of Oracle's Java foundation classes . println("Introduce the sequence of numbers to store in array. 2) Read the array length and store the value into the variable len, read the elements using the Scanner class method and store the elements into the array array []. Merge sort algorithm is very simple. One array is from index l to m, the 2nd array is from m+1 to h. Java Example: Program to Sort an Array in Ascending Order. In this article we will us May 17, 2021 · The collection class provides two methods for sorting ArrayList. With this, the user can give inputs in the console screen Jun 5, 2024 · Using While Loop. It prompts the user to enter the size of the array and each element of the array. This function performs the merging of two sorted sub-arrays that are A [beg…mid] and A [mid+1…end], to build one sorted array A [beg…end]. 5. Using Scanner. private int[] numbers; private int[] helper; private int number; private long swapCounter = 0; public MergeSort(int[] inputNumbers) {. Using the Scanner class in Java is the easiest way to read input in a Java program, though not very efficient if you want an input method for scenarios where time is a constraint like in competitive programming. The read() method of BufferedReader class in Java is used to read a single character from the given buffered reader. java Just count how many positions you swap an element when taking an element from the high half: public class MergeSort {. Example 1: Add element to LinkedList using Scanner. 3) Sort (int a []) will sort the numbers in Mar 15, 2024 · Ways of sorting in Java. In the first example, we will observe the sorting of a series of numbers in an array. Using Static Method. * post: items has been sorted from low to high. It is a general purpose comparison based algorithm. In the following program, we have defined an array of type integer. This method returns this string s which is eventually printed out by the print statement in the main method. Here's your code converted to use local variables and return calculated results. count = scan. In the worst case, the algorithm will select only one element in each iteration, so O (n) + O (n-1) + … + O (1), which is equal to O (n2). Each sub-problem is solved individually and finally, sub-problems are combined to form the final solutions. 2) In this program sort () method calls itself recursively then partition () method partitions the array, repeats until there is no Jun 13, 2022 · Java Program for QuickSort. Quicksort algorithm is based on the divide and conquer approach where an array is divided into subarrays by selecting a pivot element. 1. Divide the unsorted list into multiple sub lists using mid index ( ( start index + end index) /2) until each sub list contains single element. If the remainder of n/i=0 then add i value to sum and increase the i value. */. sort; import java. As a result, the QuickSort algorithm has the complexity of O (n log n). If you know the basics of coding, you can even write more than 5+ ways. 2) Sort (int a [],int l,int h) if l<h then the array will be divided in to two partitions at the index m= (l+h)/2. First, Thread 1 sorts the front half of the source array and Thread 2 sorts the back half of the source array. This is the same program as of previous, but created using while loop, instead of for. It picks an element as pivot and partitions the given array around the picked pivot. Method 2: Using Selection Sort. If current element is greater than the next element, it is swapped. e. 2) Declare a sum variable and initialize it with 0. It will be the sorted list. Explore Teams Create a free Team Sep 15, 2022 · Steps. #2) Check if N=1, myArray is already sorted. Sorting numbers is straightforward because they do not have associated ASCII values like alphabets or names. Say to read integer from user use in. Mar 31, 2024 · Sorting an Array in Ascending Order Without Using the sort () Method. sort() method uses merge sort or Time Sort to sort the array elements. in); System. Scanner; public class SimplePrimeNoProgram { public static boolean isPrime(int number) { // declare variables int i = 2; // negative numbers, 0 and 1 // are not a prime Write a Java program to perform selection sort using for loop. 2) Read the entered long number, assigned to the long variable n. sum = sum + array [i]) 4) Calculate the average, avg = sum/number_of_array_elements. On the average QuickSort has O (n log n) complexity You can also use sort method of Arrays class to sort integers in ascending order but remember that sort method uses a variation of Quick sort algorithm. In this sorting: The elements are split into two sub-arrays (n/2) again and again until only one element is left. Sep 23, 2022 · In this guide, you will learn how to implement merge sort algorithm in Java. I need help w Mar 4, 2023 · Merge Sort is a recursive algorithm, and the following recurrence relation can be used to express its time complexity. At the end, we are printing/displaying the sorted array. public class CodesCracker. May 16, 2024 · 1) Read the value using scanner class object sc. Always pick first element as pivot. How it works Jun 3, 2024 · One Dimensional Array Program in Java – In this article, we will detail in on all the different methods to describe the one-dimensional array program in Java with suitable examples & sample outputs. To sort the haves, they either call this function recursively or switch to a serial sort if 2^recursion_depth > number_of_cores; then. To understand how Merge Sort works you must understand two core data structures, Arrays and Stacks. After that, we have invoked the sort() method of the Arrays class and parses the array to be sort. There are many different versions of quickSort that pick pivot in different ways. 2. Arrays. Then we will get the reverse of a string. Using String. Arrays; Mar 18, 2024 · There are two ways to create a string in Java: String literal. Step 2: Extract File. The first merge sort recursion calls (list, 0, 3) When this goes back, since it is recursion and satisfies the base case, 0<3, we have , midindex = 1 so next call is Jun 4, 2024 · Java program to calculate or to print area of a circle in a simple method. I've seen many examples of this with an int array but I need help using a string array. A min-heap is nothing but a binary tree in which the value of each node is smaller than the values of its child Aug 6, 2019 · Sorting is a process of arranging items in a sequential order, based on some criterion. Example #1. SortArrayExample1. Here is a link to the many sorting algorithms you can implement: Sorting Algorithms See full list on baeldung. The following steps describe how the program works in detail: Import the java. May 5, 2018 · Following is my java implementation of merge sort, which I did after attending a tutorial on merge sort algorithm. 1) We are using an array for insertion sort. next() function returns the next token/word in the input as a string and charAt(0) function returns the first character in that string, the number 0 in the function in CharAt(NUMBER) represents the index of the single word of the In the previous program, we used the For Loop to check prime numbers or not but in this program, we will use the While Loop to check prime numbers in java. ArrayList; public class Main { public static void main (String[]args) { System. Now as per your code above, Midindex = 3. May 13, 2024 · Find Vowels In A String – Using Switch Case. Following is the algorithm for the technique. The Algorithm. 3) Iterate through the array and add numbers to the sum variable and update the sum variable (i. key = A[i] j = i - 1. In words, the square of the hypotenuse is equal to the sum of the squares of both the sides. sort(Database. 1) Merge sort combines the two sorted arrays in sorted format. I am working on a Java program that reads a text file line-by-line, each with a number, takes each number throws it into an array, then tries and use insertion sort to sort the array. Jun 5, 2024 · Using Class. Any ideas on how to do this better? Nov 12, 2019 · Enter First Number : 100 Enter Second Number : 500 Scanner example to Sum of two numbers (100, 500) = 600. Bubble sort algorithm is known as the simplest sorting algorithm. util. Merge sort is based on the principe of divide-and-conquer approach that was invented by John von Neumann in 1945. To get started, find the downloaded source code file below and click to start downloading it. Most implementations produce a stable sort, which means that the implementation preserves the input order of equal elements in the sorted output. So quick sort is also called as divide and conquer algorithm. while j > 0 and A[j] > key. k = 0; i = low; j = mid +1; c [ k ++] = array [ i ++]; c [ k ++] = array [ j ++]; May 11, 2023 · Once we have all the strings stored in the string array, we are comparing the alphabets starting from the first alphabet of each string to get them sorted in the alphabetical order. util package to read user input from the console. *; public class MergeSort { int[] a; MergeSort() { Scanner scan = new Scanner(System. sort () works for arrays which can be of primitive data type also which in turn by default sorts in ascending order. " Conceptually, a merge sort works as follows : Divide the unsorted list into Jun 4, 2024 · Java program to calculate the average of marks. Scanner class: The program starts by importing the Scanner class, which is used to read input from the console. length. 1) The class “Reverse” will reverse the given array. 2) The print method will print the array elements, the sort method will sort the array elements. Divide an array into half when it reaches to only one level then sort it. 3) while loop iterates until the condition (i<=n/2) is false. public static void main ( String [] args) int n, i, j, element; Scanner scan = new Scanner (System. What is a Merge Sort in Java? Merge sort algorithm is used to sort a group of elements. Next step is to merge it in sequence. This java program import java. Dec 15, 2017 · this. An array of size N is divided into a maximum The code above shows how to write Mergesort in Java. Jun 14, 2018 · Hence write an import statement at top, say import java. for i = 0 to i < length of the array. Using Standard Method. It provides many methods to read and parse various primitive values. If condition is true then. Using Separate Class. The syntax for the sort () method is like below. Methods: There exist two methods with which we can sort any string in java Jul 9, 2014 · T (n) = Θ (n * log (n)) Since the mergesort algorithm uses the same systematic approach for any array this formula is both the worst case and average case running time. package com. This is how you generally calculate the hypotenuse of a right triangle. out. To print the elements of two-dimensional string array for i=0 to i<3 for j=0 to j<2 prints the string element which is at the index str [i] [j]. This is my main method: Apr 2, 2015 · If your merge method is Ok (I don't test it), you forget to merge left and right to input, edit your code as shown below and re-try: // This is called recursion. Jun 3, 2024 · Two Dimensional – Using String. Step 1: Download Source Code. Scanner class. The program begins by importing the Scanner class to take input from the user. As per the problem we have to plot a time complexity graph by just using C. Who is on the 5 dollar bill? Input would be Lincoln and other inputs would be invalid the question will have 3 choices so the logic has to work. Below is the implementation of the above approach: Java. Jun 4, 2024 · Java Income Tax – Using Scanner Class. at xe lf yj jp bl dq ne qb wj