importjava.util.List;importjava.util.stream.Collectors;importjava.util.Collections;publicclassMain{publicstaticvoidmain(String[]args){// 步骤1:创建一个List对象List<Integer>numbers=List.of(1,2,3,4,5);// 步骤2:使用stream()方法获取流List<Integer>reversedNumbers=numbers.stream()// 步骤3:使用colle...
//MIT License: https://bit.ly/35gZLa3importjava.util.regex.Pattern;importjava.util.stream.Collectors;publicfinalclassStrings{privatestaticfinalPatternPATTERN=Pattern.compile(" +");privatestaticfinalStringWHITESPACE=" ";privateStrings(){thrownewAssertionError("Cannot be instantiated");}publicstaticString...
In this short guide, we've taken a look at how you can collect and reverse a stream/list in Java 8, using collect() and Collections.reverse() - individually, and together through the collectingAndThen() method. # java# streams Last Updated: December 13th, 2021 Was this article helpful?
1. Java Program to Reverse the Characters of a String We canreverse a string by charactereasily, using aStringBuilder.reverse()method. StringblogName="HowToDoInJava.com";Stringreverse=newStringBuilder(string).reverse();System.out.println("Original String -> "+blogName);System.out.println("Rever...
// create a simple Stream of strings Stream<String> stream = Stream.of("Alex", "John", "Baray", "Emma"); // reverse stream and print elements stream.collect(Collectors.toCollection(LinkedList::new)) .descendingIterator().forEachRemaining(System.out::println); In the above example, we ...
using (StreamReaderstreamReader=newStreamReader(path)) { result = streamReader.ReadToEnd(); }returnresult; }// Token: 0x06000003 RID: 3 RVA: 0x000021B0 File Offset: 0x000003B0privatestaticstringsearch(charx, string text){intlength=text.Length;for(inti=0; i < length; i++) ...
*/publicstaticvoidmain(String[]args){int[]arr={1,2,3,4,5,6,7,8,9,10,11};for(inti=0;i<arr.length/2;i++){swap(i,arr.length-1-i,arr);}Arrays.stream(arr).forEach(System.out::println);/** * 虽然每个元素都进行来移动,但是是在原数组空间上进行交换 ...
publicstaticvoidmain(String[]args) { int[]arr={1,2,3,4,5,6,7,8,9,10,11}; for(inti=0;i<arr.length/2;i++){ swap(i,arr.length-1-i,arr); } Arrays.stream(arr).forEach(System.out::println); /** * 虽然每个元素都进行来移动,但是是在原数组空间上进行交换 ...
(String[] args) throws Exception{ byte[] enc=Base64.getDecoder().decode("JqslHrdvtgJrRs2QAp+FEVdwRPNLswrnykD/sZMivmjGRKUMVIC/rw=="); byte[] arr_b1 = "A8UdWaeq".getBytes(); SecretKeySpec key = new SecretKeySpec(arr_b1, "DES"); // System.out.println(key); byte[] arr_b2 =...
import java.util.List; import java.util.stream.Collectors; class Main { // 在 Java 中使用 `Collections.reverse()` 反转字符串的方法 public static String reverse(String str) { // 基本情况:如果字符串为 null 或为空 if (str == null || str.equals("")) { return str; } // 创建一个空...