方法一:使用String类的substring和concat方法 这种方法通过截取字符串的前半部分和后半部分,然后重新组合来实现替换。 java public class ReplaceLastChar { public static void main(String[] args) { String original = "Hello, World!"; String lastCharToReplace = "!"; String newChar = "?"; if (origin...
publicclassStringReplaceLastExample{publicstaticStringreplaceLast(Stringtext,Stringtarget,Stringreplacement){intlastIndex=text.lastIndexOf(target);if(lastIndex==-1){returntext;// 如果没有找到目标子字符串,返回原字符串}StringbeforeLast=text.substring(0,lastIndex);StringafterLast=text.substring(lastIndex+t...
完整代码示例 下面是一个完整的Java程序示例,演示了如何实现Java String Replace最后一个字符串匹配。 publicclassStringReplaceExample{publicstaticvoidmain(String[]args){StringoriginalString="Hello World Hello";StringtargetString="Hello";StringnewString="Hi";StringreplacedString=replaceLast(originalString,targetStri...
3) String replace(CharSequence target, CharSequence replacement) String str ="kkskaaaaksfhdf"; System.out.println(str.replace("a","o")); 运行结果:kkskooooksfhdf 4)String replaceAll(String regex, String replacement):用新的内容替换全部就内容 String str ="kkskaaaaksfhdf"; System.out.println(s...
System.out.println(index1); System.out.println(index2); String last=strs.replace(s, " ");//不应该全部删除的,要保留一个空格来待处理System.out.println(s); System.out.println(last);
("男");}}String c="陕C38205(黄)色";String c1=c.substring(c.lastIndexOf(")")+1);String c2=c.substring(0,c.indexOf("("));String c3=c.replace("(","");c3=c3.replace(")","");String c5=c.substring(c.indexOf("(")+1,c.indexOf(")"));System.out.println(c1);//色...
public String replaceLast(String str, String regex, String replacement){ String headStr = str.substring(0, str.lastIndexOf(regex)); String tailStr = str.substring(str.lastIndexOf(regex) + regex.length(), str.length()); return new StringBuilder(headStr).append(replacement).append(tailStr)....
replace(tmpString, deleteString.subSequence(0, 0)); return deleteString; } 第八种方法 — 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,代码如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 public String deleteCharString7(String sourceString, char chElemData) { String deleteString...
replace各个方法的定义 一、replaceFirst方法 public String replaceFirst(String regex, String replacement) { returnPattern.compile(regex).matcher(this).replaceFirst(replacement); } 二、replace方法 public String replace(CharSequence target, CharSequence replacement) { ...
下面是完整的代码示例,展示了如何实现“java string替换最后一个字符”: importjava.util.Scanner;publicclassReplaceLastCharacter{publicstaticvoidmain(String[]args){Scannerscanner=newScanner(System.in);System.out.println("请输入原始字符串:");StringoriginalString=scanner.nextLine();charlastChar=originalString.ch...