Thara is attending a math lecture, and her professor asks students to swap two numbers using a bitwise operator. The professor finds it difficult to check the logic of 50 students. So, he decided to write a Java program to get two numbers, first and second, from the user and swap the numbers. He is not good at programming. Help them by developing an application using your Java skills.Note:Use bitwise operator.Negative and zero are also accepted as inputs and numbers have to be swapped accordingly.In the Sample Input / Output provided, the highlighted text in bold corresponds to the input given by the user, and the rest of the text represents the output.Ensure to follow the object-oriented specifications provided in the question description.Ensure to provide the names for classes, attributes, and methods as specified in the question description.Adhere to the code template, if provided.Please do not use System.exit(0) to terminate the program.Sample Input 1:Enter the numbers8743Sample Output 1:Before swappingfirst = 87, second = 43After swappingfirst = 43, second = 87
Question
Thara is attending a math lecture, and her professor asks students to swap two numbers using a bitwise operator. The professor finds it difficult to check the logic of 50 students. So, he decided to write a Java program to get two numbers, first and second, from the user and swap the numbers. He is not good at programming. Help them by developing an application using your Java skills.Note:Use bitwise operator.Negative and zero are also accepted as inputs and numbers have to be swapped accordingly.In the Sample Input / Output provided, the highlighted text in bold corresponds to the input given by the user, and the rest of the text represents the output.Ensure to follow the object-oriented specifications provided in the question description.Ensure to provide the names for classes, attributes, and methods as specified in the question description.Adhere to the code template, if provided.Please do not use System.exit(0) to terminate the program.Sample Input 1:Enter the numbers8743Sample Output 1:Before swappingfirst = 87, second = 43After swappingfirst = 43, second = 87
Solution
Here is a simple Java program that uses bitwise operators to swap two numbers:
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("Enter the numbers");
int first = scanner.nextInt();
int second = scanner.nextInt();
System.out.println("Before swapping");
System.out.println("first = " + first + ", second = " + second);
first = first ^ second;
second = first ^ second;
first = first ^ second;
System.out.println("After swapping");
System.out.println("first = " + first + ", second = " + second);
}
}
This program works by using the XOR bitwise operator to swap the numbers. The XOR operator returns true if the bits compared are different, and false if they are the same. By performing the XOR operation three times, we can swap the values of the two variables without needing a third variable to temporarily store one of the values.
Similar Questions
How do you swap two numbers without using a third variable in Java?
Mike is working on a programming assignment related to bitwise operations. He wants to perform a bitwise OR operation on two given integer values. Write a program that takes two integers as input, performs a bitwise OR (|) operation, and displays the result.Input format :The input consists of two unsigned integers, ip1 and ip2, separated by spaces.
Write a program to find whether a given integer is positive or negative.Sample Input 1:Enter the number:45Sample Output 1:45 is a positive numberSample Input 2: Enter the number:-364Sample Output 2:-364 is a negative numberScanner sc = new Scanner(System.in);public static void main(String[] args) {import java.util.*;public class Main {if(num>=0)System.out.println(num+" is a negative number");elseSystem.out.println("Enter the number:");int num=sc.nextInt(); }}System.out.println(num+" is a positive number");
Olivia likes to play with numbers. She told her friends about a game in which Olivia would tell them three numbers and they would have to find the smallest among them. As it was time-consuming, her friends decided to write a program to get three numbers and print the smallest one. Help them by developing an application using your Java skills.Note:Use ternary operator.If all 3 numbers are same then print "All numbers are equal".Negative and zero are also accepted as inputs and the smallest number has to be found accordingly.In the Sample Input / Output provided, the highlighted text in bold corresponds to the input given by the user, and the rest of the text represents the output.Ensure to follow the object-oriented specifications provided in the question description.Ensure to provide the names for classes, attributes, and methods as specified in the question description.Adhere to the code template, if provided.Please do not use System.exit(0) to terminate the program.Sample Input 1:Enter the numbers587543Sample Output 1:The smallest number is 43Sample Input 2:Enter the numbers8-74Sample Output 2:The smallest number is -7Sample Input 3:Enter the numbers555Sample Output 3:All numbers are equalSample Input 4:Enter the numbers8878Sample Output 4:The smallest number is 8
Kevin is trying to solve a number puzzle. If the number is greater than fifty, he wants the difference between the digits of the number; otherwise, if the number is less than or equal to fifty, he wants to reverse the number and find the difference in digits. Help Kevin to solve the problem using a Java program.Requirements:The input number should be a two-digit integer, or else display "Invalid number".Note:In the Sample Input / Output provided, the highlighted text in bold corresponds to the input given by the user, and the rest of the text represents the output.Ensure to follow the object-oriented specifications provided in the question description.Ensure to provide the names for classes, attributes, and methods as specified in the question description.Adhere to the code template, if provided.Please do not use System.exit(0) to terminate the program.Sample Input/Output 1:Enter the number56-1Explanation:56 is greater than 50, so subtract 5 - 6 = -1Sample Input/Output 2:Enter the number484Explanation:48 is less than 50, so reverse 48 to 84 then subtract 8 - 4 = 4Sample Input/Output 3:Enter the number9Invalid number
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.