Most new Java developers quickly learn that they should generally compare Java Strings using String.equals(Object) rather than using ==. This is emphasized and reinforced to new developers repeatedly ...
It's not terribly clean, but you could use indexOf() and check if it returns -1. Better than breaking out a loop.
Along with lambdas, Java SE 8 brought method references to the Java language. This tutorial offers a brief overview of method references in Java, then gets you started using them with Java code ...