Question

Write a Java program using jGRASP directions are as follows:

• • Uses a while loop to print the numbers from 3 - 19.
  • Uses a do-while loop to print the numbers from 42 - 56.
  • Uses a for loop to print the numbers from 87 - 95.
  • Asks the user for 2 numbers. Uses a loop to print all numbers between the given numbers, inclusive.
    • Note: Consider that your user's second number can be lower! (see example below)
    • Note: Also consider that your user might give you two of the same number.
• Your program MUST:
  • Use a while, do-while, and for loop. The fourth loop is your choice.
  • Actively use in-line comments stating what each section of code does.
  • Use try/catch, BUT only if necessary.
  • Your program must conform to the Java coding standards
  • This is an example of what your program should output:

• I'm going to print out the numbers 3-19 using a while loop:
  3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
  
  I'm going to print out the numbers 42-56 using a do-while loop:
  42 43 44 45 46 47 48 49 50 51 52 53 54 55 56
  
  I'm going to print out the numbers 87-95 using a for loop:
  87 88 89 90 91 92 93 94 95
  
  Now I'll print whatever numbers you'd like!
  Give me a starting number:
  2
  Give me an ending number:
  -4
  I see that your ending number is lower. Okay, I'll count down!
  2 1 0 -1 -2 -3 -4
   ----jGRASP: operation complete.

Answer 1

Please find below code and don't forget to give a Like

import java.util.Scanner;
public class Main
{
   public static void main(String[] args) {
       int firstnum=3,secondnum=19;
       int dofirst=42,dolast=56;
       int forfirst=87,forlast=95;
       int first=2,last=-2;
       System.out.println("This is while loop");
       while(firstnum<=secondnum){
      
       System.out.print(firstnum+" ");
       firstnum=firstnum+1;
       }
       System.out.println();
       System.out.println("This is do while loop");
       do{
      
       System.out.print(dofirst+" ");
       dofirst=dofirst+1;
      
       }
       while(dofirst<=dolast);
       System.out.println();
       System.out.println("This is for loop");
for(int i=forfirst;i<=forlast;i++){

System.out.print(i+" ");
}

if(last<first){
System.out.println();
       System.out.println("This is negative number for loop");
for(int k=first;k>=last;k--){
System.out.print(k+" ");
}
}
   }
}

To take the input from user, we use Scanner

import java.util.Scanner;
public class Main
{
   public static void main(String[] args) {
       Scanner input= new Scanner(System.in);
System.out.println("Enter first number");
int firstnum= input.nextInt();
System.out.println("Enter second number");
int secondnum= input.nextInt();
for(int i=firstnum;i<=secondnum;i++){
System.out.println(i);
}
   }
}