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java编程,用代码实现计算器类(Calculator)

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java编程,用代码实现计算器类(Calculator)
(1)定义成员变量运算数1(number1)和运算数2(number2)。
(2)定义成员方法“加”(add)、“减”(subtract)、“乘”(multiple)、“除”(divide)。
(3)定义测试类Test,对任意数进行加、减、乘、除运算。
public class Calculator {
private int number1;
private int number2;
public Calculator(int number1, int number2) {
this.number1 = number1;
this.number2 = number2;
}
public double add() {
return number1 + number2;
}
public double subtract() {
return number1 - number2;
}
public double multiple() {
return number1 * number2;
}
public double divide() {
if(number2 == 0) {
return 0;
}
return number1 / number2;
}
}
public class TestCalculator {
public static void main(String[] args) {
Calculator calculator = new Calculator(5, 2);
System.out.println(calculator.add());
System.out.println(calculator.subtract());
System.out.println(calculator.multiple());
System.out.println(calculator.divide());
}
}