Explication détaillée de la définition et de l'utilisation des listes chaînées en Java avec un exemple de code

package com.example.java;

public class MyLink {

public static void main(String [] args){ 

Link l=new Link(); 
  mytype[] la; 
  mytype dsome=new mytype("韩敏","dsome",21); 
  mytype shao=new mytype("邵晓","john",45); 
  mytype hua=new mytype("华晓风","jam",46); 
  mytype duo=new mytype("余小风","duo",1000); 
  mytype wang=new mytype("王秋","jack",21); 
  mytype shi=new mytype("韩寒","bob",3000); 
  mytype yu=new mytype("于冬","keven",30); 

l.add(dsome);//测试增加节点 
  l.add(shao); 
  l.add(hua); 
  l.add(wang); 
  l.add(shi); 
  l.add(duo); 
  l.add(yu); 

  System.out.println("链表长度："+l.length());//链表长度 
  la=l.toArray(); 
  for(int i=0;i<la.length;i++){ 
 System.out.println(la[i].getInfo()); 
 } System.out.println("是否包含多余:"+l.contains(duo)+"\n"); 
  System.out.println("删除多余后\n"); 
  l.remove(duo); 
  la=l.toArray(); 
  for(int i=0;i<la.length;i++){//转化为数组之后输出 
   System.out.println(la[i].getInfo()); 
  }  
System.out.println("\n利用索引方法输出全部数据"); 
  for(int i=0;i<l.length();i++){ 
   System.out.println(l.get(i).getInfo()); 
  }  
System.out.println("是否包含多余:"+l.contains(duo)+"\n"); 
  l.clean(); 
  System.out.println("执行清空操作后链表长度: "+l.length()+"\t是否为空链表："+l.isEmpty()); 
}
}


package com.example.java;
public class Link {

private class Node{//内部类 
private Node next; 
private mytype data; 
public Node(mytype data){ 
   this.data=data; 
 } 

public void addNode(Node newNode){//增加节点 
   if(this.next==null){ 
    this.next=newNode; 
   }else{ 
    this.next.addNode(newNode); 
   } 
  } 

  public mytype getNode(int index){//按照角标返回数据 

   if(index==Link.this.foot++){ 
    return this.data; 
   }else{ 
    return this.next.getNode(index); 
   } 
  } 

  public boolean iscontain(mytype data){//判断是否含有该数据 
   if(this.data.equals(data)){ 
    return true; 
   }else{ 
    if(this.next!=null){ 
     return this.next.iscontain(data); 
    }else{ 
     return false; 
    } 
   } 
  } 

  public void removeNode(Node previous,mytype data){//删除节点 
   if(this.data.equals(data)){ 
    previous.next=this.next; 

   }else{ 
    this.next.removeNode(this,data); 
   } 
  } 


  public void toArrayNode(){//转化数组 
    Link.this.Larray[Link.this.foot ++]=this.data; 
    if(this.next!=null){ 
     this.next.toArrayNode(); 
    } 
   }  
}

//内部类定义完毕 
private Node root; 
private int count=0; 
private int foot; 
private mytype [] Larray;

public void add(mytype data){//增加节点 
  if(data==null){ 
   System.out.print("增加数据失败，数据为空");//测试用 
   return; 
  } 
  Node newNode=new Node(data); 
  if(this.root==null){ 
   this.root=newNode; 
   this.count++; 
  }else{ 
   this.root.addNode(newNode); 
   this.count++; 
  } 
 } 

 public int length(){//链表长度 
  return this.count; 
 } 

 public boolean isEmpty(){//是否为空链表 
  if(this.count==0)return true; 
  else return false; 
 } 

 public void clean(){//清空链表 
  this.root=null; 
  this.count=0; 
 } 

 public mytype get(int index){//索引返回节点所存的数据 
    if(index>=this.count||index<0){ 
     System.out.print("越界错误");//测试用 
     return null; 
    }else{ 
     this.foot=0; 
     return this.root.getNode(index); 
    } 
   } 

   public boolean contains(mytype data){//判断链表数据是否含data 
    if(data==null) 
     return false; 
    return this.root.iscontain(data); 
   } 

   public void remove(mytype data){//删除指定数据节点 
    if(this.contains(data)){ 
     if(this.root.data.equals(data)){ 
      this.root=this.root.next; 
      this.count--;   
     } 
     else{ 
      this.count--; 
      this.root.next.removeNode(root,data); 
     } 
    }else{ 
     System.out.print("删除错误");//测试用     
    } 
   } 

   public mytype[] toArray(){//把链表转化成对象数组 
    if(this.count==0){ 
     return null; 
    } 
     this.foot=0; 
     this.Larray=new mytype [this.count]; 
     this.root.toArrayNode(); 
     return this.Larray;     
   }     
}


package com.example.java;

public class mytype {

private String name; 
private String people; 
private int age;

public mytype(String name,String people,int age){//链表中的数据（可自定义） 
  this.name=name; 
  this.people=people; 
  this.age=age; 
 } 
 public boolean equals(mytype data){//判断数据是否相同 
  if(this==data){ 
   return true; 
  } 
  if(data==null){ 
   return false; 
  } 
  if(this.name.equals(data.name)&&this.people.equals(data.people)&&this.age==data.age){ 
   return true; 
  }else{ 
   return false; 
  } 
 }
public String getName() {
  return name;
}
public void setName(String name) {
  this.name = name;
}
public String getPeople() {
  return people;
}
public void setPeople(String people) {
  this.people = people;
}
public int getAge() {
  return age;
}
public void setAge(int age) {
  this.age = age;
} 

public String getInfo(){ 
  return "名字 :"+this.name+"\n"+ 
      "人物 :"+this.people+"\n"+ 
      "年龄 :"+this.age; 
 }   
}