Java如何对LinkedList元素进行排序？
要排序元素，LinkedList可以使用Collections.sort(List<T>list)静态方法。排序的默认顺序是降序。
package org.nhooo.example.util;
import java.util.LinkedList;
import java.util.Collections;
public class LinkedListSort {
public static void main(String[] args) {
LinkedList<String> grades = new LinkedList<>();
grades.add("E");
grades.add("C");
grades.add("A");
grades.add("F");
grades.add("B");
grades.add("D");
System.out.println("Before sorting:");
System.out.println("===============");
for (String grade : grades) {
System.out.println("Grade = " + grade);
}
//根据链接列表的数据对元素进行排序
//自然秩序。
Collections.sort(grades);
System.out.println("After sorting:");
System.out.println("===============");
for (String grade : grades) {
System.out.println("Grade = " + grade);
}
}
}该程序的结果是：
Before sorting: =============== Grade = E Grade = C Grade = A Grade = F Grade = B Grade = D After sorting: =============== Grade = A Grade = B Grade = C Grade = D Grade = E Grade = F