package org.com;import java.lang.*; import java.util.*;public class Calculator { private int solution; private static int x; private static int y; private char operators; public Calculator() { solution = 0; Scanner operators = new Scanner(System.in); Scanner operands = new Scanner(System.in); } public int addition(int x, int y) { return x + y; } public int subtraction(int x, int y) { return x - y; } public int multiplication(int x, int y) { return x * y; } public int division(int x, int y) { solution = x / y; return solution; } public void calc(int ops){ x = 4; System.out.println("operand 2: "); y = 5; switch(ops) { case(1): System.out.println(addition(x, y));// operands.next(); break; case(2): System.out.println(subtraction(x, y)); // operands.next(); break; case(3): System.out.println(multiplication(x, y)); // operands.next(); break; case(4): System.out.println(division(x, y)); // operands.next(); break;} } public static void main (String[] args) { System.out.println("What operation? ('+', '-', '*', '/')"); System.out.println(" Enter 1 for Addition"); System.out.println(" Enter 2 for Subtraction"); System.out.println(" Enter 3 for Multiplication"); System.out.println(" Enter 4 for Division"); Calculator calc = new Calculator(); calc.calc(1); } }这会工作
