1、int indexOf(String str) :返回第一次出现的指定子字符串在此字符串中的索引。 2、int indexOf(String str, int startIndex):从指定的索引处开始,返回第一次出现的指定子字符串在此字符串中的索引。 3、int lastIndexOf(String str) :返回在此字符串中最右边出现的指定子字符串的索引。 4、int lastIn...
首先,我们需要导入StringBuilder类: importjava.lang.StringBuilder; 1. 然后,我们可以使用以下代码将字符串反转: StringBuilderreversedString=newStringBuilder(inputString);reversedString.reverse(); 1. 2. 在这段代码中,我们创建了一个StringBuilder对象reversedString,并将原始字符串inputString传递给它。然后,我们调用了...
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...
// Importing necessary Java utilities.importjava.util.*;// Define a class named Main.publicclassMain{// Method to reverse words in a given string.publicstaticStringWordsInReverse(Stringstr1){// Create a StringBuilder object and reverse the entire string.StringBuildersb=newStringBuilder(str1);Strin...
To prevent repeated calls, you can use the GET_JSON_OBJECT function with UDTFs. For more information, see Convert JSON log data by using MaxCompute built-in functions and UDTFs. Parameters json: required. A value of the STRING type. This parameter specifies a standard JSON object in the ...
import java.util.Scanner; /* * Scanner:用于获取键盘录入数据 * public String nextline():获取键盘录入字符串数据 */ public class ScannerLearn { public static void main(String
main' function. Open Compiler import java.util.*; public class ReverseString { public static void main(String[] args) { System.out.println("Required packages have been imported"); String input_string = "Java Program"; System.out.println("The string is defined as " +input_string); char[...
On Crunchify, we have published more than 500 Java Tutorials and in this tutorial we will go over steps on how to reverse a string in Java? There are 7
import java.util.Stack; import java.util.StringTokenizer; public class StringReverse { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub String s="hello world!"; method(s); //适用于英文短句单词倒叙输出 ...
Learn how to reverse a string using recursion in Java with this step-by-step guide. Understand the recursive approach and see practical examples.