ompiling_with_javac

import java.util.Scanner;
import java.io.*;

class calc{
	int result, operator1, operator2;
	char operand;

	int add(int a, int b){
		return a+b;
	}

	int sub(int a, int b){
		return a-b;
	}

	public void calc(){
		Scanner in = new Scanner(System.in);
		System.out.println("\nEnter first operator: ");
		operator1 = in.nextInt();
		System.out.println("\nEnter second operator: ");
		operator2 = in.nextInt();
		System.out.println("\nEnter operand(options-> + - * /): ");
		operator2 = in.next().charAt(0);

		System.out.println("\nCalculating.....");

		switch(operand){
		case '+':
			result = add(operator1, operator2);
			System.out.println("\nResult:"+result);
		case '-':
			result = sub(operator1, operator2);
			System.out.println("\nResult:"+result);

		default:
			System.out.println("\nWrong choice of operand!");
		}
	}
}

class test{
	public static void main(String args[]){
		calc c1 = new calc();
	}
}