Java application integer

Question

I'm trying to create my fist java application with an if statement that will take an integer (e.x 22) and find out if its sum is equal when multiplied and subtract (e.x 2*2=4 and 2+2=4) or if its not.

Though i can't figure out how to do the if decision. can someone point out how to do that?

thank u

package 1;

import java.util.Scanner;

public class 1 
{

    public static void main(String[] args) 
    {
      Scanner input = new Scanner( System.in );

    int x;
    int y;   
    System.out.print( "Enter a number from 10 to 99: " ); 
    x = input.nextInt();

    if ( x >= 10 && x <= 99 ) 
    {
            x= x % 10;
            x= x / 10;

    }
    else
    {
        System.out.println( "you must enter a number from 10 to 99" );
    }


   } 

}

Start from identifiers and variables topic in any Java tutorial. — Rohit Jain
– Rohit Jain, Commented Oct 19, 2013 at 16:48

Rahul · Accepted Answer · 2013-10-19 17:01:43Z

1

You just need to assign them to different variable and check for the condition

if (x >= 10 && x <= 99) {
    int first = x / 10; // Take out the first digit and assign it to a variable first
    int second = x % 10; // Take out the second digit and assign it to a variable second

    if (first * second == first + second) { // Check for your condition, which you mentioned in your question
        System.out.println("Yep, they match the condition"); // If it satisfies the condition
    } else {
        System.out.println("Nope, they don't match the condition"); // If it doesn't satisfy the condition
    }

}

P.S: You question said multiplied and subtract but the example just after the example was (e.x 2 x 2=4 and 2+2=4). I went with the ex.

edited Oct 19, 2013 at 17:01

answered Oct 19, 2013 at 16:51

Rahul

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Comments

upog · Accepted Answer · 2013-10-19 17:19:33Z

0

try

import java.util.Scanner;
public class One {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int x;
        int y;
        System.out.print("Enter a number from 10 to 99: ");
        x = input.nextInt();        
        if (x >= 10 && x <= 99) {
            y = x % 10;
            x = x/10 ;
        if(x* y== x+ y)){
            System.out.println("Sum and product are equal" );
        }
        else
            System.out.println("Sum and product are not equal" );

        } else {
            System.out.println("you must enter a number from 10 to 99");
        }
      input.close();
    }
}

edited Oct 19, 2013 at 17:19

answered Oct 19, 2013 at 16:56

upog

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2 Comments

Rahul Over a year ago

if(x==y){ this condition is totally wrong. Read the question again.

upog Over a year ago

@ R.J yes , yours is correct Answer +1 , Thanks for pointing it out, have updated the code

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