package bbb;
public class Person {
 private String name;
 private int age;
 public Person(){
 }
 public Person(String name){
  this.name = name;
 }
 public Person(int age){
  this.age = age;
 }
 public Person(String name,int age){
  this.name = name;
  this.age = age;
 }
 public String getName(String name){
  return name;
 }
 public void setName(String name){
  this.name = name;
 }
 public int getage(int age){
  return age;
 }
 public void setAge(int age){
  if(age<0){
   this.age=0;
  }else{
   this.age = age;
  }
 }
 public void printMessage(){
  System.out.println("name = "+name+",age = "+age);
 }
 public void addAge(){
  age++;
 }
}

package bbb;
public class TestPerson{
 public static void main(String[] args) {
  Person p1 = new Person(" Cai Xukun ",30);
  p1.addAge();
  p1.printMessage();
  Person p2 = new Person(" Juen-Kai Wang ",20);
  p2.addAge();
  p2.printMessage();
  Person p3 = new Person();
 }
}

java More related articles on the fourth computer

1. Java Four inner classes of

   Java The four inner classes of are as follows : Member inner class Static inner class Local inner classes Anonymous inner class Member inner class : Defined in another class ( External class ) Internal , And the level with member methods and properties is called member inner class ,...... Non static methods equivalent to external classes ...

2. Java Experiment four

   20145113 Java Experiment four Shortcut key I didn't remember much before ISDEA Shortcut keys , But using shortcut keys skillfully can bring a lot of convenience , So I started to learn some common shortcut keys , Just use its default shortcut , So there won't be conflict later , some and ...

3. Java There are four kinds of quotations in English ： strong 、 soft 、 weak 、 Virtual reference

   This article is great :http://alinazh.blog.51cto.com/5459270/1276173 Java There are four kinds of quotations in English : strong . soft . weak . Virtual reference 1.1. Strong reference when we use new When this keyword creates an object ...

4. java There are four types of references in

   java There are four types of references in   Look at the code today , There is a class in it java.lang.ref.SoftReference Make me crazy , Just imagine , Contact java There has been a 3 It's been three years , even lang The classes under the package don't understand , How . Later on ...

5. 《Thinking In Java The Fourth Edition 》 Pick up

   <Thinking In Java The Fourth Edition > Pick up Self transforming github(http://katsurakkkk.github.io/2016/05/Thinking-In-Java%E7%AC ...

6. Java In the fourth class, I started to use my brain

   Java In the fourth class, I started to use my brain 1.    see String.equals() Method public class StringEquals { /** * @param args the command ...

7. Java Advanced ( forty-seven )Socket signal communication

   Java Advanced ( forty-seven )Socket signal communication Today I'm going to talk about a Hello Word Grade Java Socket Examples of communication . The specific communication process is as follows : Start... First Server End , Entering a dead loop to listen to a port all the time is ...

8. Java Advanced ( forty-three ) The difference between thread and process

   Java Advanced ( forty-three ) The difference between thread and process 1. Basic concept of thread Concept : A thread is the smallest unit of execution in a process , Is an entity in the process , It is the basic unit independently scheduled and dispatched by the system , Thread does not own system resources , Only have a little in operation ...

9. Java Advanced ( Forty-two )Java Multithreading uses anonymous inner classes to create 3 Ways of planting

   Java Multithreading uses anonymous inner classes to create 3 Ways of planting package cn.edu.ujn.demo; // Anonymous inner class format : public class ThreadDemo { public st ...

Random recommendation

1. java Multithreading （ Essence version ）

   stay Java It's better to use multithreading in a program than in C or C++ It's much easier in the middle , This is because Java Programming languages provide language level support . In this paper, through a simple programming example to illustrate Java How intuitive multithreading is in a program . After reading this article , Users should ...

2. SQL--Order By

   Order By-- The current query data results , Sort , Sort by the column specified later ; DESC-- Reverse sort ( Descending ); ASC-- Positive sequence sort ( Ascending ); Chinese characters : Sort by the initials of Pinyin , Ascending order is from a--z; Descending order is from z ...

3. cocos2d-x Use UIWebView Load web page ( By the way, you can see how to use OC transfer C++)

   Monkey original , Welcome to reprint . Reprint please indicate :  Reprinted from Cocos2D Development Network –Cocos2Dev.com, thank you ! Original address : http://www.cocos2dev.com/?p=248 Some time ago, the project was authorized to log on by microblog ...

4. HDU 1695 GCD Euler function + The inclusion exclusion theorem

   Input a b c d k Ask how many are right x y bring x stay a-b Section y stay c-d Section gcd(x, y) = k Besides a and c It must be 1 because gcd(x, y) == k take b and d All divided by k The title translates into 1 To b/k and ...

5. Linux Under the fork()【 Reprint 】

   [ Original address ]http://blog.csdn.net/hikaliv/article/details/4276758 [cpp] view plaincopy   for( i = 0; i < ...

6. Java-Maven（ 7、 ... and ）：Eclipse in Maven rely on 、 polymerization 、 Inheritance features

   I learned about ,maven Integrated into the eclipse How to create a project in , as well as maven The command plug-in is eclipse Usage after installation in . So next we're going to learn some maven Some features in the project , And how to use . Maven ...

7. K3 Data dictionary for reference

   select distinct f.FNumber as System code , f.FName AS System name ,  d.FTableName AS Table name ,d.FDescription AS Table description ,a.[nam ...

8. In depth understanding of JVM（ 7、 ... and ）—— Performance monitoring tools

   Preface If a worker wants to do a good job, he must sharpen his tools first , Performance optimization and troubleshooting in the eyes of most of us is a relatively difficult thing , First, we need to have certain principle knowledge as the basis , Second, we need to master the process of troubleshooting and solving problems . Method . This article will introduce the use of performance monitoring tools , Help to open ...

9. use indexof To count the number of times characters appear

   The code is as follows : <!DOCTYPE html> <html lang="en"> <head>     <meta charset=" ...

10. Write your... In this format distributionUrl, You can use local gradle package

    distributionUrl=file\:/C:/Users/shenliuyong/.gradle/wrapper/dists/gradle-2.10-all/a4w5fzrkeut1ox71xs ...