摘要:
package poker;import java.util.ArrayList;import java.util.Collections;public class PokerTest { public static void main(String[] args) { //黑桃♠、红心♥、梅花♣、 阅读全文
摘要:
public class StudentDemo { public static void main(String[] args) { ArrayList<Students> arrayList = new ArrayList<>(); arrayList.add(new Students("张三" 阅读全文
摘要:
import java.util.ArrayList;import java.util.Collections;public class Collection { public static void main(String[] args) { ArrayList<Integer> list = n 阅读全文
摘要:
import java.util.HashMap;import java.util.Scanner;import java.util.Set;public class HashDemo { public static void main(String[] args) { System.out.pri 阅读全文