Chapter 3.1, Problem 7STQ

Explanation of Solution

Comparison of “int” variables:

If “x1” and “x2” are two variables of type “int”, then the values of the variables are compared as “x1 == x2”.

Example:

//Import necessary header files

import java.util.*;

//Define the class

class Main

{

    //Define the main() method

    public static void main(String[] args)

    {

        //Initialize the variables

        int x1 = 10;

        int x2 = 10;

        //Check the condition

        if(x1 == x2)

        {

            //True, print the statement

            System...

Explanation of Solution

Comparison of “int” variables:

• • If “x1” and “x2” are two variables of type “string”, then the values of the variables are compared as “x1.equals(x2)”.
  • ○ The method “equals()” mention the operator “= =”.
  • ○ It always returns the Boolean values, it doesn’t throw any exception.

Example:

//Import necessary header files

import java.util.*;

//Define the class

class Main

{

    //Define the main() method

    public static void main(String[] args)

    {

        //Initialize the string variables

        String x1 = "10"

        String x2 = "10"

        //Check the condition

        if(x1.equals(x2))

        {

            //True, print the statement

            System...