我的正则表达式模式不起作用

Question

I need to make pattern which will accept String in format (_,_) eg: "(0,0)" , "(1,3)" , "(5,8)" etc.

I wrote condition as following:

if (name.equals("(\\d,\\d)")) {
   System.out.println("accepted")
}

Answer 1

You need to escape the parenthesis with \\ . They have special meaning in regex (for grouping).

You also need to call the correct method, one which matches with a regex, which isn't equals() , but matches() .

Answer 2

name.equals() doesn't actually accept a regular expression. You're looking for matches() , which will accept a regular expression.

You'll also have to escape the parentheses, as they have special meaning in a regular expression.

if(name.matches("\\(\\d,\\d\\)") {
    System.out.println("accepted");
}