如何删除字符串的一部分？

Question

For example, if I have multiple strings of the type something, $other and I'd like to delete the part after the comma, so that I get something how can I do it? I remember that there was a way to do it using % or something but I can't find it.

Answer 1

you could use string split to accomplish what you want

String s = "something, $other";
String whatYouWant = s.split(",")[0];

Answer 2

Take a look at the String api. You can get the index "something, $something".indexOf() of the comma. Then use that index and the substring() method.

Answer 3

A version without using .split() and thus without iterating the entire string.

Using substring :

String s = "something, $other";
String whatYouWant = s.substring( 0, s.indexOf(","));