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java足球的出场源代码 java足球的出场源代码是什么
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java一个简单小程序，求高手帮忙编写，万分感谢
class Ball {
public void play() {
System.out.println("玩球儿...");
}
}
class Football extends Ball {
public void play() {
System.out.println("使用足球运动");
}
}
class Basketball extends Ball {
public void play() {
System.out.println("使用篮球运动");
}
}
public class TestMain {
public static void main(String[] args) {
TestMain tm = new TestMain();
tm.testPlay();
}
public void testPlay() {
Ball ball = new Football();
ball.play();
ball = new Basketball();
ball.play();
}
}
/*
D:\javac TestMain.java
D:\java TestMain
使用足球运动
使用篮球运动
*/
相关问答
Q1: 用java编写小程序，已知a、b、c 3个队伍进行足球比赛，胜利3记分，平局1分，输0分
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
public class Test {
public static void main(String[] args) {
final String[] str = { "a-b 1:1", "a-c 2:1", "b-c 0:1" };
final MapString, Integer map = new HashMapString, Integer();
for (String s : str) {
final String[] temp = s.split(" ");
final String[] names = temp[0].split("-");
final String[] counts = temp[1].split(":");
for (int i = 0; i 2; i++) {
String name = names[i];
int count = Integer.parseInt(counts[i]);
if (map.containsKey(name)) {
map.put(name, map.get(name) + count);
} else {
map.put(name, count);
}
}
}
final ListTeam teams = new LinkedListTeam();
for (String name : map.keySet()) {
teams.add(new Team(name, map.get(name)));
}
Collections.sort(teams);
System.out.println("队伍 : 分");
for (Team t : teams) {
System.out.println(t.getName() + " : " + t.getCount());
}
}
}
class Team implements ComparableTeam {
private String name;
private int count;
public Team(String name, int count) {
this.name = name;
this.count = count;
}
public void addCount(int count) {
this.count = this.count + count;
}
public String getName() {
return name;
}
public int getCount() {
return count;
}
public int compareTo(Team o) {
return o.getCount() - this.count;
}
}
Q2: 一道java题目，谁能帮我把准确的代码写出来
class Sports {
private String sportsName;
private int playerCount;
Sports() {
this.sportsName = "乒乓球";
this.playerCount = 4;
}
Sports(String sportsName, int playerCount) {
this.sportsName = sportsName;
this.playerCount = playerCount;
}
public String getSportsName() {
return sportsName;
}
public void setSportsName(String sportsName) {
this.sportsName = sportsName;
}
public int getPlayerCount() {
return playerCount;
}
public void setPlayerCount(int playerCount) {
this.playerCount = playerCount;
}
public void show(){
System.out.println("项目名称是:"+sportsName);
System.out.println("参加人数:"+playerCount);
}
public void minCount(Sports[] o){
int count=o[0].getPlayerCount();
String name=o[0].getSportsName();
for(int i=0;io.length;i++){
if(counto[i].getPlayerCount()){
count=o[i].getPlayerCount();
name=o[i].getSportsName();
}
}
System.out.println("所需人数最少的体育项目是:"+name);
System.out.println("所需人数是:"+count);
}
}
public class TestSports{
public static void main(String[] args) {
Sports[] sp=new Sports[4];
sp[0]=new Sports("篮球",10);
sp[1]=new Sports("足球",22);
sp[2]=new Sports("羽毛球",2);
sp[3]=new Sports();
for(int i=0;isp.length;i++){
sp[i].show();
}
new Sports().minCount(sp);
}
}
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