Question

please tel the program see the questions in image and tell please fast it's urgent







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iam in need​

Answer 1

Answer:

import java.util.Scanner;

import java.io.*;

public class NumCheck {

public static void main(String[] args){

Scanner input = new Scanner(System.in);

System.out.println("Enter a number maximum 9 digit");

int num =input.nextInt();

System.out.println("Enter the digit according to your choice 1 or 2 or 3 or 4 to check the number what you have entered");

System.out.println("1.for checking primeNumber");

System.out.println("2. for checking Armstrong Number");

System.out.println("3. for checking Palindrome Number");

System.out.println("4. for checking Perfect Number");

System.out.println("enter your choice :");

int a= input.nextInt();

switch (a){

case 1:

int perfectNo = 0;

int i;

System.out.println("Factors are:");

for (i = 1; i < num; i++) {

if (num % i == 0) {

perfectNo += i;

System.out.println(i);

}

}

if (perfectNo == num) {

System.out.println("number is a perfect number");

}

else

{

System.out.println("number is not a perfect number");

}

case 2:

int x;

System.out.println("Enter an integer to check if it is odd or even");

Scanner in = new Scanner(System.in);

x = in.nextInt();

if (x % 2 == 0)

System.out.println("The number is even.");

else

System.out.println("The number is odd.");

}

}

}

Explanation:

hope it will help