What's the best way to remove all \n \r \t from a string?

Question

What's the best way to remove all \\n , \\r , \\t from a String in java ? Is there some sort of library and method that can do that for me nicely instead of me having to use string.replaceAll(); multiple times?

Answer 1

请尝试以下方法：

str.replaceAll("[\\n\\r\\t]+", "");

Answer 2

There is no need to do str.replaceAll multiple times. Just use a regex:

str.replaceAll("\\s+", "");

Answer 3

Using regex in java. for future reference, if you want to replace a more complex subset of strings

// strings that you want to remove
String regexp = "str1|str2|str3";

StringBuffer sb = new StringBuffer();
Pattern p = Pattern.compile(regexp);

// here input is your input string
Matcher m = p.matcher(input);

while (m.find())
    m.appendReplacement(sb, "");
m.appendTail(sb);


System.out.println(sb.toString());