testper.java

用java编写的一些初级代码

class Person1
{
    private int age ;
    public void setAge(int age){
	if (age<0||age >130)
	    return ;
	this.age=age;
    }
    public int getAge(){
	return this.age;
    }
}
public class Testper
{
    public static void main (String [] args)
    {
	Person1 p1= new Person1();
	p1.setAge(1);
	p1.setAge(-1);
	System.out.println(p1.getAge());
    }
}