Using this way, we first call a Collections.sort(), which is a static method in the Java Collections class that sorts a given list in ascending order and then we call the Collections.reverse() to get the list in a reverse order. Example class Test { public static void main(String[] ...
String[] strArray = new String[]{"hello","Hello", "Hello kity", "hello kity","D","w","A","z"}; Arrays.sort(strArray ,String.CASE_INSENSITIVE_ORDER); System.out.println(Arrays.toString(strArray)); 1. 2. 3. 运行结果如下: [A, D, hello, Hello, Hello kity, hello kity, w,...
(直接调用是按照值的大小升序排序,即由小到大排序) import java.util.Arrays; public class Main { public static void main(String[] args) { int[] arr = { 1, 3, 2, 44, 22, 555, -2 }; Arrays.sort(arr); for (int x : arr) { System.out.println(x); } } } 1. 2. 3. 4. 5....
All the above methods, by default, sort the elements in natural order i.e. ascending order. We can use supply the custom ordering aComparatorinstance for a custom order, such asCollections.reverseOrder()for the reverse order of the elements. 2. Enforcing the Sorting Order on Elements For an...
publicstaticclassStudent{publicString name;publicintage;publicStudent(String name,intage){this.name = name;this.age = age; }@OverridepublicStringtoString(){return"{name:"+ name +",age:"+ age +"}"; } } 然后实现一个排序类SortByNameAge,在compare方法中定义排序规则 ...
words.sort(String::compareToIgnoreCase); System.out.println(words); } We sort a list of words in-place in natural order and later regardless of case. $ java Main.java [Caesar, Earth, War, abbot, castle, den, falcon, forest, ocean, owl, rain, sky, ... ...
Example: Sorting in Ascending Order importjava.util.ArrayList;importjava.util.Collections;classMain{publicstaticvoidmain(String[] args){// Creating an array listArrayList<Integer> numbers =newArrayList<>();// Add elementsnumbers.add(4); numbers.add(2); ...
下面是我写的 Java 代码: import java.util.Arrays; public class sort_list { public static void main(String[] args) { String [] a_list = {"bob", "kate", "jaguar", "mazda", "honda", "civic", "grasshopper"}; Arrays.sort(a_list); System.out.println(Arrays.toString(a_list));} }...
在本教程中,它展示了如何使用java.lang.Comparable和java.util.Comparator根据其属性值对Java对象进行排序。 1.排序数组 要对数组进行排序,请使用Arrays.sort()。 String[] fruits = new String[] {"Pineapple","Apple", "Orange", "Banana"}; Arrays.sort(fruits); ...
classPersonimplementsComparable<Person>{privateString name;privateintage;publicPerson(){};publicPerson(String name,intage){this.name = name;this.age = age; }publicintgetAge(){returnage; }@OverridepublicintcompareTo(Person arg0){returnthis.age - arg0.age; ...