Java如何替换所有指定（出现）的字符串？

Posted 2021-01-05 borter

在Java编程中，如何替换所有指定(出现)的字符串？

以下示例演示如何使用Matcher类的replaceAll()方法替换字符串中的所有出现的子字符串。

package com.yiibai;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class ReplaceAllOccurrences {
    public static void main(String args[]) {
        Pattern p = Pattern.compile("Java");
        String instring = "Java and javascript all is the best languages.";
        System.out.println("initial String: " + instring);
        Matcher m = p.matcher(instring);
        String tmp = m.replaceAll("Python");
        System.out.println("String after replacing 1st Match: " + tmp);
    }
}

Java

上述代码示例将产生以下结果 -

initial String: Java and Javascript all is the best languages.
String after replacing 1st Match: Python and Pythonscript all is the best languages.