Question

I want to get specific parts of a String like:

@org.junit.runners.Suite$SuiteClasses(value=[class data.XTest
, class data.YTest])

data.XTest and data.YTest are variable.
Whats the best way to get the classes after the class.

Required output:

sTring[0] = data.XTest;
sTring[1] = data.YTest;

Answer 1

How about this one-liner:

String[] parts = input.replaceAll(".*\\[class (.*)\\].*", "$1").split(", class ");

This works by first using regex to extract the substring between "...[class " and "]", then splits on the separating chars to neatly pluck out the target strings.

Here’s a test:

public static void main(String[] args) {
    String input = "@org.junit.runners.Suite$SuiteClasses(value=[class data.XTest, class data.YTest])";
    String[] parts = input.replaceAll(".*\\[class (.*)\\].*", "$1").split(", class ");
    System.out.println(Arrays.toString(parts));
}

Output:

[data.XTest, data.YTest]