例如,我们想要去掉字符o和l: publicclassRemoveMultipleCharacters{publicstaticvoidmain(String[]args){StringoriginalString="Hello, World!";StringcharsToRemove="ol";StringmodifiedString=removeCharacters(originalString,charsToRemove);System.out.println("Original String: "+originalString);System.out.println("Modifi...
第一步:创建Java程序 首先,我们需要创建一个Java类,命名为StringCleaner,并在其中包含主方法。 publicclassStringCleaner{publicstaticvoidmain(String[]args){// 测试字符串Stringinput="Hello, World! This123 is #Java.";StringcleanedString=removeSpecialCharacters(input);System.out.println("清理后的字符串: "...
*/publicstaticStringremoveSpecialCharacters(String str){// 使用正则表达式替换所有非字母数字字符为空字符串// \\p{Punct} 表示标点符号,\\p{Space} 表示空白字符,\\p{Digit} 表示数字// 但我们想要保留数字,所以只替换非字母和非数字字符// 注意:Java中正则表达式中的反斜杠需要被转义,所以写作 \\// 也...
; String output = removeSpecialCharacters(input); System.out.println(output); // 输出: HelloWorld2021Java } public static String removeSpecialCharacters(String str) { // 使用 Apache Commons Lang库移除特殊字符 return StringUtils.deleteWhitespace(str); } } 需要注意的是,StringUtils.deleteWhitespace ...
Special Characters 有些情况下,只允许保留部分字符,例如数字、字母、空格、下划线等等,该怎么办呢? 这时候可以使用正则表达式。 如下面的例子: // remove all the special characters a part of alpha numeric characters String text = "This - word ! has \\ /allot # of % special % characters"; text ...
How does Java remove the characters specfed n the strng? 方法三:把原字符串转化为字符数组,然后原理与直接插入排序原理类似 packagecom.de.test;publicclasstest {publicstaticvoidmain(String[] args) { String str= "How does Java remove the characters specified in the string?";chardelChar = 'e';...
import java.util.regex.Pattern; public class RemoveSpecialCharacters { public static void main(String[] args) { String str = "Hello, World!@#$%^&*()_+=-"; // 使用正则表达式去掉特殊字符 String result = str.replaceAll("[^a-zA-Z0-9]", ""); System.out.println(result); } } 复制代...
java regex unicode non-ascii-characters 我有如下输入字符串。 String comment = "Good morning! \u2028\u2028I am looking to purchase a new Honda car as I\u2019m outgrowing my current car. I currently drive a Hyundai Accent and I was looking for something a little bit larger and more ...
Java program to remove non-alphanumeric characters withMethod 1: Using ASCII values*/public class Main {// Function to remove the non-alphanumeric characters and print the resultant stringpublic static String rmvNonalphnum(String s){String temp = “”;...
publicclassRemoveEnglishCharacters{publicstaticvoidmain(String[]args){StringoriginalString="Hello World!";// 原始字符串StringupdatedString="";// 存储删除英文字符后的结果的字符串变量// 遍历原始字符串的每个字符for(inti=0;i<originalString.length();i++){charc=originalString.charAt(i);// 获取当前字符...