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 ...

Generics are used in Java to allow types or methods to operate on objects of various types while providing compile-time type safety. Generics address the problem of ClassCastExceptions being ...

Call the Java String length() method; Hold the value of the String length in a variable for future use; Java String length method() The Java String class contains a length() method that returns the ...

How to printf a Java String. To use the Java String printf method to format output text, follow these rules:. Use %s as the printf String specifier in the text string being formatted.; Use %S as the ...

For loops in Java are extremely powerful and lend themselves to many different coding applications. In this post, we will explain how to use them, and look at more advanced concepts such as labelling.