arithmeticdemo.java

我自己学习JAVA过程中用键盘敲的代码

package jerryhfb;
public class ArithmeticDemo {

public static void main(String[] args) {



//定义几个数

int i = 37;

int j = 42;

double x = 27.475;

double y = 7.22;

System.out.println("变量数值...");

System.out.println(" i = " + i);

System.out.println(" j = " + j);

System.out.println(" x = " + x);

System.out.println(" y = " + y);

//加

System.out.println("加...");

System.out.println(" i + j = " + (i + j));

System.out.println(" x + y = " + (x + y));

//减

System.out.println("减...");

System.out.println(" i - j = " + (i - j));

System.out.println(" x - y = " + (x - y));

//乘

System.out.println("乘...");

System.out.println(" i * j = " + (i * j));

System.out.println(" x * y = " + (x * y));

//除

System.out.println("除...");

System.out.println(" i / j = " + (i / j));

System.out.println(" x / y = " + (x / y));

//从除法中求得余数

System.out.println("计算余数...");

System.out.println(" i % j = " + (i%j));

System.out.println(" x % y = " + (x%y));

//混合类型

System.out.println("混合类型...");

System.out.println(" j + y = " + (j + y));

System.out.println(" i * x = " + (i * x));

}

}