Java Output Code of Simple Calculator is not worked output correctly?

Question

The Code is to simply display calculations of two numbers taken from user

import java.util.Scanner;
public class simple_Calculator {

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

        System.out.println("Input First Number:");
        int num=in.nextInt();

        System.out.println("Input Second Number:");
        int num1=in.nextInt();

        int a,b,c,d;
        float e;
        a=num+num1;
        b=num-num1;
        c=num*num1;
        e=num/num1;
        d=num%num1;

        System.out.println("num"+"+"+"num2"+"="+a);

        System.out.println("num"+"-"+"num1"+"="+b);

        System.out.println("num"+"*"+"num1"+"="+c);

        System.out.println("num"+"/"+"num1"+"="+e);

        System.out.println("num"+"mod"+"num1"+"="+d);


    }

}

Look it is not correct of divide and modulus whats the problem can you help me to fix this

U divide integers. Convert em to float first. – Sv Sv Dec 02 '17 at 09:08 — Sv Sv, Dec 02 '17 at 09:08
can you send code which is error and where should i debug – Aju Tamang Dec 02 '17 at 09:15 — Aju Tamang, Dec 02 '17 at 09:15
oh.......................... – Aju Tamang Dec 02 '17 at 09:16 — Aju Tamang, Dec 02 '17 at 09:16

Przemysław Moskal · Answer 1 · 2017-12-02T09:20:23.327

0

When diving ints you lose accuracy. You should cast each operand to float or simply use floats in these operations. This is the way you can cast both operands to float:

float e = (float)sum1/(float)sum2;

edited Dec 02 '17 at 09:20

answered Dec 02 '17 at 09:11

Przemysław Moskal

3,551
2
12
21

score 0 · Answer 2 · answered Dec 02 '17 at 09:16

0

With a Type Cast your code should work correct.

e = (float)num / (float)num1;
d = (int) ((float)num % (float)num1);

http://www.studytonight.com/java/type-casting-in-java

answered Dec 02 '17 at 09:16

Fry123

38
4

score 0 · Answer 3 · answered Dec 02 '17 at 09:17

Integers will simply truncate numbers after decimal point. It cannot be a decimal value and the division you are doing is of two int, so it simply discards the value after decimal point. Try this,

float x1 = (float)num;
float y1 = (float)num1;
float e = x1/y1;

Java Output Code of Simple Calculator is not worked output correctly?

3 Answers3