How to remove all characters before a specific character in Java?

Question

I have a string and I'm getting value through a html form so when I get the value it comes in a URL so I want to remove all the characters before the specific charater which is = and I also want to remove this character. I only want to save the value that comes after = because I need to fetch that value from the variable..

EDIT : I need to remove the = too since I'm trying to get the characters/value in string after it...

Answer 1

You can use .substring():

String s = "the text=text"; String s1 = s.substring(s.indexOf("=") + 1); s1.trim(); 

then s1 contains everything after = in the original string.

s1.trim()

.trim() removes spaces before the first character (which isn't a whitespace, such as letters, numbers etc.) of a string (leading spaces) and also removes spaces after the last character (trailing spaces).

Answer 2

While there are many answers. Here is a regex example

String test = "eo21jüdjüqw=realString"; test = test.replaceAll(".+=", ""); System.out.println(test);  // prints realString 

Explanation:

.+ matches any character (except for line terminators)
+ Quantifier — Matches between one and unlimited times, as many times as possible, giving back as needed (greedy)
= matches the character = literally (case sensitive)

This is also a shady copy paste from https://regex101.com/ where you can try regex out.