替换Java中的字符 [英] Replacing characters in Java

问题描述

我尝试了以下操作：

  String t =[javatag]; 
 String t1 = t; 
 String t2 = t; 
 t.replace（\\\[，）; 
 t.replace（\\\]，）; 
 t1.replace（[，）; 
 t1.replace（]，）; 
 t2.replace（\\]，）; 
 t2.replace（\\ [，）; 
 System.out.println（t +，+ t1 +，+ t2）; 
  

结果输出仍然是 [javatag]，[javatag]

我应该怎么做来替换那些[和] 字符？

解决方案

字符串是不可变的

< t.replace（....）;


不执行任何操作

输出到一些变量如

  t = t.replace（....）; 
  

I tried to replace characters in String which works sometimes and does not work most of the time.

I tried the following:

String t = "[javatag]";
String t1 = t;
String t2 = t;
t.replace("\u005B", "");
t.replace("\u005D", "");
t1.replace("[", "");
t1.replace("]", "");
t2.replace("\\]", "");
t2.replace("\\[", "");
System.out.println(t+" , "+t1+" , "+t2);

The resulting output is still "[javatag] , [javatag] , [javatag]" without the "[" and "]" being replaced.

What should I do to replace those "[" and "]" characters ?

解决方案

Strings are immutable so

t.replace(....);

does nothing

you need to assign the output to some variable like

t = t.replace(....);

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