The filter string - removing some chars

Question

is there a function in Java which removed from a string unwanted chars given by me? If not, what the most effective way to do it. I would like realize it in JAVA

EDIT: But, I want reach for example:

String toRescue="@8*"
String text = "ra@dada882da(*%"
and after call function:
string text2="@88*"

Are third-party libraries fair game? Guava's [`CharMatcher`](http://docs.guava-libraries.googlecode.com/git-history/release/javadoc/com/google/common/base/CharMatcher.html) lets you define and operate on character classes, e.g. `CharMatcher.anyOf("aeiou").removeFrom(string)` — Louis Wasserman, Mar 25 '14 at 21:54
Duplicates http://stackoverflow.com/questions/4576352/java-remove-all-occurances-of-char-from-string — chouk, Mar 25 '14 at 21:54

Óscar López · Accepted Answer · 2014-03-25T22:23:46.883

1

You can use a regular expression, for example:

String text  = "ra@dada882da(*%";
String text2 = text.replaceAll("[^@8*]", "");

After executing the above snippet, text2 will contain the string "@88*".

edited Mar 25 '14 at 22:23

answered Mar 25 '14 at 21:56

Óscar López

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score 0 · Answer 2 · answered Mar 25 '14 at 21:56

The Java String has many methods which can help you, such as

String.replace(char old, char new);
String.split(regex);
String.substring(int beginIndex);

These and many others are described in the javadoc : http://docs.oracle.com/javase/6/docs/api/java/lang/String.html

The filter string - removing some chars

2 Answers2