Question

JAVA IDE NETBEANS

Create a program that will prompt the user to enter 20 numbers using any looping statement. Store it in a 2-dimensional array. Display all the numbers in a table format. Determine which numbers are odd and which numbers are even (include their array index)

need some help with codes

Answer 1

SOLUTION:

Copy the given code into NetBeans where the project folder's main class is present.

import java.util.*;

public class MyClass {
    public static void main(String args[]) {
        //Svanner is used to read data from User
        Scanner sc = new Scanner(System.in);
        //2d array Declaration
        int[][] num = new int[2][10];
        //Variable Declarations
        int i=0;
        int j=0;
        int k=0;
        // loop to read and store user data into loop
        while(i<20){
            num[j][k]=sc.nextInt();
            k+=1;
            if(i==9){
                j+=1;
                k=0;
            }
            i++;
        }
        // Head of the Table
        System.out.println("-----------------------------------------------");
        System.out.printf("%10s %10s %10s %10s", "Index", "Value", "Even", "Odd");
        System.out.println();
        System.out.println("-----------------------------------------------");
        k=0;
        // Rows of the Table
        for(i=0;i<2;i++){
              for(j=0;j<10;j++){
                  int val=num[i][j];
                  System.out.format("%10s %10s %10s %10s",
                    k++,val,val%2==0,val%2!=0);
            System.out.println();      
              }
          }
        System.out.println("-----------------------------------------------");
    }
}

OUTPUT: