As with Java 7 we can handle more than one type of exception using a single catch block. We should use the ‘|’ operator for putting them together in the same catch statement. When catch handles more than one type of exception the catch parameter is implicitly final. We won’t be able to assign it with [...]
As of Java 7 we can code a try statement that declares one or more resources. Each resource is an object that must be closed after the program is finished. The try-with-resources statement ensures that each resource is closed at the end of the statement. Each object considered as a resource must be instantiated from a class [...]
As of Java 7 we can write a switch case statement that works on strings. This new capability might assist us with writing a shorter code. package com.abelski.samples; public class Demo { public static void main(String[] args) { String operator = args[1]; double numA = Double.parseDouble(args[0]); double numB = Double.parseDouble(args[2]); String result; switch(operator) { case [...]
As of Java 7, we can improve the readability of our code by adding underscores in between digits in numerical literals. package com.abelski.samples; public class SeparatorClass { public static void main(String[] args) { double num = 1_424_234.532; System.out.println(num); } } The following video clips overviews this code sample and shows its execution.
