What are Java assertions? Before JDK 1.4, developers often used comments to document assumptions about program correctness. But comments don’t actually help us test and debug our assumptions ...

The Java virtual machine is a program whose purpose is to execute other programs. It’s a simple idea that also stands as one of our greatest examples of coding kung fu.The JVM upset the status ...

int x = 10; x = "ten"; // Error: violation of strong typing in Java When not to use var in Java. The var keyword cannot be used in place of every variable declaration in a Java program. Use of the var ...