publicclassStringReplaceExample{publicstaticvoidmain(String[]args){// 输入原始字符串StringoriginalString="Hello, world!";// 输入要替换的字符串StringtargetString="world";// 输入替换后的字符串StringreplacementString="Java";// 调用replace方法进行替换StringreplacedString=originalString.replace(targetString,rep...
方法一:使用String的replace方法 Java中的String类提供了一个replace方法,用于将字符串中的指定字符替换为其他字符。该方法有两个参数:要被替换的字符和替换后的字符。 AI检测代码解析 publicclassStringReplaceExample{publicstaticvoidmain(String[]args){Stringstr="Hello World";StringnewStr=str.replace('o','x')...
*/publicstaticStringreplaceWithRegex(String inputString,String regex,String replacement){// 判断输入参数是否为空if(inputString==null||regex==null||replacement==null){thrownewIllegalArgumentException("Input strings cannot be null");}// 使用正则表达式替换字符串String replacedString=inputString.replaceAll(...
Stringreplace(char oldChar, char newChar) Returns a string resulting from replacing all occurrences of oldChar in this string with newChar. Stringreplace(CharSequence target, CharSequence replacement) Replaces each substring of this string that matches the literal target sequence with the spe...
System.out.println(modifiedString); // 输出: This is a example string. 这种方法虽然能够实现特定部分的替换,但在处理大量数据或者需要多次替换时可能效率不高。 三、使用StringBuilder或StringBuffer类的replace()方法 对于更复杂的替换需求,比如需要频繁修改字符串的场景,使用StringBuilder或StringBuffer的replace(int...
public class RegexReplaceExample { public static void main(String[] args) { String testString = "This is a test string with numbers: 123, 456, 789"; String regex = "\\d+"; // 匹配一个或多个数字 String replacement = "NUM";
public class RegexReplaceExample { public static void main(String[] args) { String testString = "This is a test string with numbers: 123, 456, 789"; String regex = "\\d+";//匹配一个或多个数字 String replacement = "NUM"; Pattern pattern = Pattern.compile(regex); ...
public class ReplaceStringExample { public static void main(String[] args) { String originalString = "Hello World"; String replacementString = "Java"; int startIndex = 6; int endIndex = 11; // 使用substring方法获取替换位置之前的部分字符串 String beforeReplacement = originalString.substring(0, ...
Example 1: Java String replace() Characters class Main { public static void main(String[] args) { String str1 = "abc cba"; // all occurrences of 'a' is replaced with 'z' System.out.println(str1.replace('a', 'z')); // zbc cbz // all occurences of 'L' is replaced with 'J...
String intern() String split() String replace() String replaceFirst() String replaceAll() String substring() String startsWith() String endsWith() String toUpperCase() String toLowerCase() Table of Contents 1. String.replaceAll() API 2. String.replaceAll() Example 2.1. Replace All Occurrences...