Using regex to match any character except =

Question

I am trying to write a String validation to match any character (regular, digit and special) except =.

Here is what I have written -

    String patt         


        

Answer 1

First of all, you don't need a regexp. Simply call contains:

if(str.contains("="))
    System.out.println("does not");
else
    System.out.println("matches");

The correct regexp you're looking for is just

String patternString = "[^=]*";