When you write String::toUpperCase, Java binds each element of the stream (String object) to the toUpperCase() method. This means String::toUpperCase is interpreted as s -> s.toUpperCase(), where ...

Line 3 loads the .dll file named hello, which is created using System.loadLibary method in Java. Line 5 creates class object and calls the C function, display (). Direct Hit!

The Java printf function helps simplify the task of printing formatted output to the console, terminal window or log files. The Java printf function makes it easier to create informative strings of ...