定义两个整数，计算这两个整数加减乘除取余运算的结果，并把结果打印到控制台

public class 练习 {
    public static void main(String[] args) {
        //定义两个变量并赋值
        int number1 = 10;
        int number2 = 5;
        //将两个变量运算的结果重新赋值给变量a
        int a = number1 + number2;
        System.out.println("a = " + a);//a = 15
        a = number1 - number2;
        System.out.println("a = " + a);//a = 5
        a = number1 * number2;
        System.out.println("a = " + a);//a = 50
        a = number1 / number2;
        System.out.println("a = " + a);//a = 2
        a = number1 % number2;
        System.out.println("a = " + a);//a = 0

    }
}