Regular expression java

//Ther are three type of REGULAR EXPRESSION     
   //first
   ^(.+)@(.+)$   "^(.+)@(.+)$\""
   //second
   ^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,6}$
     //third
   ^[\\w!#$%&'*+/=?`{|}~^-]+(?:\\.[\\w!#$%&'*+/=?`{|}~^-]+)*@(?!-)(?:[a-zA-Z0-9-]+\\.)+[a-zA-Z]{2,6}$

Similar codes

0 vote256 views1 answer
Java format use same value multiple times
Java
0 vote286 views1 answer
Spring boot maven run with profile
Java
0 vote283 views1 answer
Spigot check if inventory is empty
Java
48 votes273 views6 answers
How to generate random numbers in java within range
Java
0 vote306 views1 answer
How to write a line in java
Java
6 votes307 views4 answers
Install java in ubuntu 20.04
Java
1 vote304 views1 answer
Java string array to one string
Java
0 vote328 views1 answer
Spring boot send api request
Java Spring
0 vote279 views1 answer
Java data table source tymeLeaf
Java
0 vote288 views1 answer
Java show error dialog
Java