摘要:
package a927; import java.util.ArrayList; import java.util.List; class Student { private String name ; private int age ; private int score ; private String classNum ; publi... 阅读全文
摘要:
import java.util.ArrayList; import java.util.List; import java.util.Random; public class ListDemo { public static void main(String[] args) { // 实例化 List lt = new ArrayList(); ... 阅读全文
摘要:
package a9_26; import java.util.HashMap; import java.util.Map; import java.util.Scanner; public class A { public static void main(String[] args) { // 提示输入 System.out.println("请... 阅读全文