21

package variable;

public class jar21 {

	public static void main(String[] args) {
		int num1=50;
		int num2=15;
		char op='*';
		
		System.out.println(cal(num1,num2,op));
	}

	public static int cal(int num1, int num2, char op) {
		if(op=='+') {
			return num1+num2;
		}else if(op=='-') {
			return num1-num2;
		}else if(op=='*') {
			return num1*num2;
		}else {
			return num1/num2;
		}
	}
}