2.21iftest.java

来自「JAVA程序设计的源代码」· Java 代码 · 共 9 行

public class IfTest{
public static void main(String []args){
int count=1;
if(count<0)    //进行if判断，如果count<0，打印该值是负数
System.out.println("The value of count is is negative!");
System.out.println("The value of count is: "+count);
}
}