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Java 在需要其功能的类中创建一个内部类。

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在需要其功能的类中创建一个内部类。

实例源码：

源代码：

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import java.util.ArrayList;

import java.util.List;
/*
 from nowjava - 时代Java 
*/

public class Main {

private Player player;

private List<Player> playerList;

private int size = 4;

/**

* Inner class representing a Player object

class Player {

private String firstName = null;

private String lastName = null;

private String position = null;

private int status = -1;
/** 来 自 时 代 J a v a 公 众 号 - N o w J a v  a . c o m**/

public Player() {

}

public Player(String position, int status) {

this.position = position;

this.status = status;

}

public String playerString() {

return getFirstName() + " " + getLastName() + " - " + getPosition();

}

/**

* @return the firstName

public String getFirstName() {

return firstName;

}

/**

* @param firstName

*          the firstName to set

public void setFirstName(String firstName) {

this.firstName = firstName;

}

/**

* @return the lastName

public String getLastName() {

return lastName;

}

/**

* @param lastName

*          the lastName to set

public void setLastName(String lastName) {

this.lastName = lastName;

}

/**

* @return the position

public String getPosition() {

return position;

}

/**

* @param position

*          the position to set

public void setPosition(String position) {

this.position = position;

}

/**

* @return the status

public int getStatus() {

return status;

}

/**

* @param status

*          the status to set

public void setStatus(int status) {

this.status = status;

}

@Override

public String toString(){

return this.firstName + " " + this.lastName + " - "+ this.position;

}

/**

* Inner class that constructs the Player objects and adds them to an array

* that was declared in the outer class;

public Main() {

final int ACTIVE = 0;

// In reality, this would probably read records from a database using

// a loop...but for this example we will manually enter the player data.

playerList = new ArrayList();

playerList.add(constructPlayer("A", "Z", "Right Wing", ACTIVE));

playerList.add(constructPlayer("B", "X", "Left Wing", ACTIVE));

playerList.add(constructPlayer("C", "Y", "Center", ACTIVE));

playerList.add(constructPlayer("D", "W", "Defense", ACTIVE));

playerList.add(constructPlayer("E", "G", "Goalie", ACTIVE));

}

public Player constructPlayer(String first, String last, String position,

int status) {

Player player = new Player();

player.firstName = first;

player.lastName = last;
/**代码未完, 请加载全部代码(NowJava.com).**/

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编辑于 2020-03-26 09:23:272020-03-26 09:23:27

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