使用正则表达式查找特定的电子邮件地址

Question

I have a list of following email addresses,

test1@khm.com,
test2@khm.com,
test3@yahoo.com
test4@gmail.com 
new1@gmail.com

How can I validate these email addresses using following email address

test.*@khm.com

Here I need to get the o/p as

test1@khm.com,
test2@khm.com

Answer 1

Seems like you want something like this,

^test[^@\\s]*@dhm\\.com$

[^@]* Matches any character but not of @ zero or more times.

System.out.println("test1@dhm.com".matches("test[^@\\s]*@dhm\\.com"));
System.out.println("test2@dhm.com".matches("test[^@\\s]*@dhm\\.com"));
System.out.println("test4@gmail.com".matches("test[^@\\s]*@dhm\\.com"));
System.out.println("new1@gmail.com".matches("test[^@\\s]*@dhm\\.com"));

Output:

true
true
false
false