Reflection was essential to the advanced Java toolkit ... If not, some examples will help illustrate. The fundamental question is: What need do these technologies—reflection, method handles ...

The apply method is the single method required ... When the class is executed, the result is the text string lambda-tutorial.txt written to the console. If you implement the UnaryOperator interface ...

To complete the use case, you must convert this one-character String into a single Java char with the charAt(0) method. Notice that the code has a check for the newline character, as this will be ...