Null pointer exception is an “exception” (error) that is particularly common when programming in Java. For a beginner, this is a confusing and daunting message to receive, but it can be just ...

More to the point, Java 8 is no longer supported by Oracle. Java 11 and Java 17 are the new LTS Java releases. The next LTS release, Java 21, is coming in 10 months. If you are using Java 8, you must ...

Using the Java array length for size. To determine the size of an array in your code, you need to use the Java array’s length property field. Just make sure the array is not null, and don’t confuse ...