In this program, we are going to find the largest number among three numbers, similar to the previous one, but it is nested if-else version.

Logic

Let three variables be: A = 400, B = 200 and C = 300

The logic goes like this:

  1. if A >= B then check for if A >= C, then print A else print C.
  2. else part: if B >= C then print B else print C.

See the below-shown flow diagram to better understand.

Program

NestedIfElseStatement.javaCopy
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        System.out.println("Enter 1st number : ");
        int num1 = scanner.nextInt();

        System.out.println("Enter 2nd number : ");
        int num2 = scanner.nextInt();

        System.out.println("Enter 3rd number : ");
        int num3 = scanner.nextInt();

        if(num1 >= num2) {

            if(num1 >= num3) {
                System.out.println(num1 + " is largest number");
            } else {
                System.out.println(num3 + " is largest number");
            }
            
        } else {

            if(num2 >= num3) {
                System.out.println(num2 + " is largest number");
            } else {
                System.out.println(num3 + " is largest number");
            }

        }

    }
}
Try It

Output

Enter 1st number : 100
Enter 2nd number : 10
Enter 3rd number : 99
100 is largest number