集合类List存放的数据,默认是按照放入时的顺序存放的,比如依次放入A.B.C,则取得时候,则也是A.B.C的顺序,实际场景中,有时我们需要根据自定义的规则对List中的元素进行排序,该如何实现呢?看下面小例子: import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.List; public class Test { public static
public class ABC { public static void main(String[] args) { new ABC().sortStringArray(); } public void sortStringArray(){ String[] a = new String[]{"Oscar", "Charlie", "Ryan", "Adam", "David","aff&quo
例子: public class IssArgs { public List<IssTabArgs> Tabs { get; set; } } public class IssTabArgs { public int Num { get; set; } public string Tab { get; set; } public List<IssArg> Args { get; set; } } public class IssArg { public int Num { get;
public class Student { private String name; private int age; private int id; public Student() { super(); } public Student(String name, int age, int id) { super(); this.name = name; this.age = age; this.id = id; } public String getName() { retur
1.输入班级人数,统计每个人的姓名,性别,年龄:集合与数组 //Console.Write("请输入班级人数:"); //int a = int.Parse(Console.ReadLine()); //ArrayList al = new ArrayList(); //for (int i = 0; i < a;i++ ) //{ // string [] name =new string[3]; // Console.Write("请输入第{0}个人的姓名:&quo