Java Programs - Solved 2023 ICSE Computer Science Paper

import java.util.Scanner;
class Overload{
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("1. Pattern");
        System.out.println("2. Lead number");
        System.out.print("Enter your choice: ");
        int choice = Integer.parseInt(in.nextLine());
        switch(choice){
        case 1:
            print();
            break;
        case 2:
            System.out.print("Enter the number: ");
            int n = Integer.parseInt(in.nextLine());
            print(n);
            break;
        default:
            System.out.println("Invalid choice!");
        }
    }
    public static void print(){
        for(int i = 1; i <= 5; i++){
            for(int j = 1; j <= 5; j++)
                System.out.print(i + " ");
            System.out.println();
        }
    }
    public static void print(int n){
        int even = 0;
        int odd = 0;
        while(n != 0){
            int d = n % 10;
            if(d % 2 == 0)
                even += d;
            else
                odd += d;
            n /= 10;
        }
        if(even == odd)
            System.out.println("Lead number!");
        else
            System.out.println("Not a lead number.");
    }
}