testarithmetic.java

来自「这是一张java应用教程的随书光盘」· Java 代码 · 共 46 行

public class  TestArithmetic 
{
public static void main(String[] args)
 {
//定义变量
int i = 33;
int j = 47;
String a="blue";
String b="sky";
double x =16.475;
double y =9.22;
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);
//加和连字符
System.out.println("加...");
System.out.println(" i + j = " + (i + j));
System.out.println(" x + y = " + (x + y));
System.out.println(" a + b = " + (a + b));

//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));
}
}