Basic calculator

#1

import java.util.Scanner ;
public class calculator {

    public static void main(String args[]) {
        takeInput();
    }
	public static void takeInput(){
     Scanner s = new Scanner(System.in);
	 char ch = s.next().charAt(0);
	 if (ch == 'X' || ch == 'x'){
		 return ;
	 }
	 else if (ch == '+'){
		 int a = s.nextInt();
		 int b = s.nextInt();
		 System.out.println(a+b); 
	 }
	 else if (ch == '-'){
		 int a = s.nextInt();
		 int b = s.nextInt();
		 System.out.println(a-b);
	 }
	 else if (ch == '*'){
		 int a = s.nextInt();
		 int b = s.nextInt();
		 System.out.println(a*b);
	 }
	 else if (ch == '/'){
		 int a = s.nextInt();
		 int b = s.nextInt();
		 System.out.println(a/b);
	 }
	 else if (ch == '%'){
		 int a = s.nextInt();
		 int b = s.nextInt();
		 System.out.println(a%b);
	 }
	 else{
		 System.out.println("Invalid operation. Try again.");
		 takeInput();
	 }
	}
}

the code is working fine on eclipse for all the test cases , then why it is showing an error while submitting the code ?

#2

where is ur loop
there are multiple test case in a single case
so please use the loop and switch case for this problem

hope this will help u

#3

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