节点的简单操作代码,Java代码库,德仔网

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【Java】节点的简单操作

作者:若夕 / 发布于2013/5/28/ 487


	public class Demo03{
	class People{
	 private String name;
	 private int age;
	 private People nextpeople;
	 public void setNextPeople(People nextpeople){
	 this.nextpeople=nextpeople;
	 }
	 public People getNextPeople(){
	 return nextpeople;
	 }
	 public People(String name,int age){
	 this.name=name;
	 this.age=age;
	 }
	 public void setName(String name){
	 this.name=name;
	 }
	 public String getName(){
	 return name;
	 }
	 public void setAge(int age){
	 this.age=age;
	 }
	 public int getAge(){
	 return age;
	 }
	 //判断当前节点是否与指定节点是同一节点
	 public boolean Equals(People people){
	 String name=this.getName();
	 String name1=people.getName();
	 int age=this.getAge();
	 int age1=people.getAge();
	 if(name.equals(name1)&&age==age1){
	 return true;
	 }else{
	 return false;
	 }
	 }
	 //通过Name找到节点
	 public People getPeopleByName(String name){
	 People people=this,peo=null;
	 do{
	 String name1=people.getName();
	 if(name.equals(name1)){
	 peo=people;
	 break;
	 }else{
	 people=people.nextpeople;
	 }
	 }while(people!=null);
	 return peo;
	 }
	 public void println(){
	 System.out.println("Name:"+name+",Age:"+age);
	 }
	}
	private People rootpeople,currentpeople,people;
	//设置节点
	public void setPeople(String name,int age){
	 currentpeople=new People(name,age);
	 if(rootpeople==null){
	 rootpeople=currentpeople;
	 people=rootpeople;
	 }else{
	 if(people.nextpeople==null){
	 people.nextpeople=currentpeople;
	 }
	 people=people.nextpeople;
	 }
	}
	//显示节点
	public void showList(){
	 rootpeople.println();
	 people=rootpeople;
	 if(people.nextpeople!=null){
	 rootpeople=people.nextpeople;
	 showList();
	 }
	}
	//显示节点
	public void show(){
	 people=rootpeople;
	 do{
	 people.println();
	 people=people.nextpeople;
	 }while(people!=null);
	}
	//删除节点
	public void deletePeople(String name,int age){
	 People people=new People(name,age);
	 if(rootpeople.Equals(people)){
	 System.out.println("该节点已删除,Name:"+rootpeople.getName()+",Age:"+rootpeople.getAge());
	 rootpeople=rootpeople.nextpeople;
	
	 }else{
	 currentpeople=rootpeople.nextpeople;
	 if(currentpeople.Equals(people)){
	 System.out.println("该节点已删除,Name:"+currentpeople.getName()+",Age:"+currentpeople.getAge());
	 rootpeople.nextpeople=currentpeople.nextpeople;
	
	 }else{
	 rootpeople=currentpeople;
	 deletePeople(name,age);
	 }
	 }
	}
	//增加节点
	public void addPeople(String name,int age){
	 People people=new People(name,age);
	 currentpeople=rootpeople;
	 do{
	 if(currentpeople.nextpeople!=null){
	 currentpeople=currentpeople.nextpeople;
	 }else{
	 currentpeople.nextpeople=people;
	 break;
	 }
	 }while(currentpeople!=null);
	}
	//在指定位置添加节点
	public void addNextPeopleByName(String oldname,String name,int age){
	 People peo=rootpeople.getPeopleByName(oldname);
	 People people=new People(name,age);
	 people.nextpeople=peo.nextpeople;
	 peo.nextpeople=people;
	}
	//修改指定节点的信息
	public void updatePeopleByName(String oldname,String newname){
	 People peo=rootpeople.getPeopleByName(oldname);
	 peo.setName(newname);
	}

	public static void main(String[] args){
	 Demo03 d1=new Demo03();
	 d1.setPeople("aaa",20);
	 d1.setPeople("bbb",21);
	 d1.setPeople("ccc",22);
	 d1.setPeople("ddd",23);
	 d1.setPeople("eee",24);
	 d1.setPeople("fff",25);
	 d1.setPeople("ggg",26);
	 d1.show();
	 d1.deletePeople("aaa",20);
	 d1.show();
	 d1.deletePeople("ccc",22);
	 d1.show();
	 System.out.println();
	 d1.addPeople("hhh",27);
	 d1.show();
	 System.out.println();
	 d1.addNextPeopleByName("eee","iii",28);
	 d1.show();
	 System.out.println();
	 d1.updatePeopleByName("fff","qqq");
	 d1.show();
	}
	}

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