Question

Write a complete Java program that do the following:

a.   Read your student’s ID number, store it in an array named myStudentNO and print it.

b.   find the number of even and odd integers in myStudentNO array

Answer 1

Source code

import java.util.Scanner;
public class Main
{
	public static void main(String[] args) {
	    int n;
	    System.out.print("Enter the length of your student ID No:");
	    Scanner in=new Scanner(System.in);
	    n=in.nextInt();
		System.out.println("Enter your student's ID NO: ");
		int [] myStudentNO=new int[n];
		for(int i=0;i<n;i++){
		    myStudentNO[i]=in.nextInt();
		}
		int countEven=0;
		int countOdd=0;
		for(int i=0;i<n;i++){
		    if (myStudentNO[i]%2==0){
		        countEven++;
		    }
		    else{
		        countOdd++;
		    }
		}
		System.out.print("Your student's ID NO: ");
		for(int i=0;i<n;i++){
		    System.out.print(myStudentNO[i]);
		}
		System.out.println("\nNumber of even numbers: "+countEven);
		System.out.println("Number of odd numbers: "+countOdd);
	}
}

Output