public class Main {
public static void main(String[] args) {
String haystack = "this is a test";
String needle1 = "Java";
int index1 = haystack.indexOf(needle1);
if (index1 != -1)
System.out.println("The string contains the substring " + needle1);
else
System.out.println("The string does not contain the substring " + needle1);
}
}
//The string does not contain the substring Java