There is an application which inputs hundred numbers from the user, if user enters a positive number it increments valid numbers count. But if a user enters other than integer it terminates. You are required to make changes in given code such that instead of termination it shows message “input is not valid” and re input a number. importjavax. swing.*; publicclass QuestionNumber4 { publicstaticvoidmain(String[] args) { intcountValidNumber=0; int num; for(inti=0;i 0){ countValidNumber++; } } System. out. println("Valid Numbers Are:"+countValidNumber); }

The program doesn't use comments (See explanation section for line by line explanation)

The program written in java is as follows:

import javax.swing.*;

import java.util.*;

public class QuestionNumber4

{  

public static void main(String[] args)  

{  

Scanner input = new Scanner(System.in);

int countValidNumber=0;  

int num;  

System.out.print("Enter an integer: ");  

for(int i=1;i<=10;i++)

{  

if(input.hasNextInt())

{

if(i!=10)

{

 System.out.print("Enter an integer: ");  

num = input.nextInt();

}

countValidNumber++;  

}

else

{

 System.out.println("input is not valid");

 if(i!=10)

 {

 System.out.print("Enter an integer: ");

 input.next();

 }

}

}

System.out.println("Valid Numbers Are:"+countValidNumber);  

}  

}

Explanation:

The next two lines import required libraries into the program

import javax.swing.*;

import java.util.*;

The next line is the class declaration

public class QuestionNumber4 {  

The next line declares the main method of tge program

public static void main(String[] args)  {  

The next line enables the program to accept inputs from the user

Scanner input = new Scanner(System.in);

The next line initializes countValidNumber to 0

int countValidNumber=0;  

The next line declares the variable that'll be used for user input

int num;  

The next line prompts the user for input

System.out.print("Enter an integer: ");  

The next line is the beginning of an iteration that allows the user up to 100 inputs

for(int i=1;i<=100;i++) {  

The nextline checks if user input is an integer

if(input.hasNextInt()) {

If user input is an integer, the italicized section is executed

if(i!=100)  -> This checks if iteration is up to 100

{

 System.out.print("Enter an integer: ");-> This line prompts the user for another input

num = input.nextInt();  -> This line accepts the input

}

countValidNumber++;   -> count of valid integers in incremented by 1

}

If user input is not an integer, the underlined section is executed

else

{

 System.out.println("input is not valid");  -> This lines displays a message that user input is invalid

 if(i!=100)  ->This checks if iteration is up to 100

 {

 System.out.print("Enter an integer: "); -> This line prompts the user for another input

 input.next();

 }

}

} -> The iteration ends here

System.out.println("Valid Numbers Are:"+countValidNumber);  -> This line prints total valid inputs

}   -> Main Method ends here

}-> The class ends here

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