In the above example of Java’s String length method, the output for the size of the String is 25. The String length method includes the whitespace padding at the beginning and the end of the String.

To find the size of a Java array, query an array’s length property. The Java array size is set permanently when the array is initialized. The size or length count of an array in Java includes both ...

Simple method delegation: Use method references for straightforward delegations that don’t require modifying or processing arguments.For example, list.forEach(System.out::println) is clearer ...

Method and variable handles vs. Java reflection. To truly understand MethodHandles and VarHandles—what they do and why they are useful—it’s helpful to know a few things about reflection in ...