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*"

Answer 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*" .

Answer 2

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