我们创建一个名为replaceMultipleCharacters的方法,该方法接受三个参数:原始字符串originalString、要替换的字符集合charsToReplace(使用HashSet以提高查找效率)、以及替换后的字符replacementChar。 遍历原始字符串中的每个字符: 使用StringBuilder来构建新的字符串,因为StringBuilder在修改字符串时比直接使用String更加高效。 检查...
importjava.util.Arrays;importjava.util.List;publicclassReplaceMultipleCharacters{publicstaticvoidmain(String[]args){StringsourceString="This is a sample string.";List<Character>charList=Arrays.asList('i','s');for(charc:charList){sourceString=sourceString.replace(c,'X');}System.out.println(source...
下面是一个完整的示例代码,演示如何使用正则表达式一次性替换多个字符: publicclassReplaceMultipleCharacters{publicstaticvoidmain(String[]args){StringoriginalString="Hello, world! This is a test string.";String[]charactersToReplace={"o",",","s"};StringreplacementCharacter="-";Stringregex="";for(String...
Contain zero or more characters that aren’t ‘0‘ between ‘e‘ and ‘o‘ End with an ‘o‘As we can see, both approaches produce the expected result: “HX w o r l d“.3. String.replace() vs String.replaceAll()The String class provides replace() and replaceAll(). The two method...
Replaces each substring of this string that matches the given regular expression with the given replacement. C# [Android.Runtime.Register("replaceAll","(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;","")]publicstringReplaceAll(stringregex,stringreplacement); ...
Example 1: Program to replace single characters import java.lang.String; public class Example1 { public static void main(String[] args) { String str = "Strings are an important part of the Java programming language"; String Str1 = str.replaceAll("a", "b"); ...
A string buffer is like a String, but can be modified. At any point in time it contains some particular sequence of characters, but the length and content of the sequence can be changed through certain method calls. String buffers are safe for use by multiple threads. The methods are ...
replace(int start, int end, String str) Replaces the characters in a substring of this sequence with characters in the specified String. StringBuilder reverse() Causes this character sequence to be replaced by the reverse of the sequence. void setCharAt(int index, char ch) The character ...
Write a Java program to convert all characters in a string to uppercase. Visual Presentation: Sample Solution: Java Code: // Define a public class named Exercise30.publicclassExercise30{// Define the main method.publicstaticvoidmain(String[]args){// Declare and initialize a string variable.Str...
2022-01-012022-01-012022-01-012022-01-012022-01-022022-01-022022-01-022022-01-022022-01-032022-01-032022-01-032022-01-032022-01-04Replace StringOutput StringReplacingOutputReplace Multiple Characters 在上面的甘特图中,替换过程预计将在2022年1月1日开始,并持续2天。输出过程预计将在2022年1月3日完成...