Another example of this is when you use (Java 9+) java SomeClass.java to compile and run a class. If the class depends on another class that you haven't compiled (or recompiled), you are liable to get …

As you should know, Java types are divided into primitive types (boolean, int, etc.) and reference types. Reference types in Java allow you to use the special value null which is the Java way of saying "no …

Aug 7, 2013 · A common problem that new Java developers experience is that their programs fail to run with the error message: Could not find or load main class ... What does this ...

Java will not give a default value to a local variable, even if it gives default values to class variables and instance variables. Section 4.12.5 of the JLS covers this:

Aug 9, 2013 · I am trying to understand the Error class in Java. I have a good understanding of the Exception class, but can't find examples of code for the Error class. I've tried ...

I'm basically refining, completing and trying to compile a test code from a reference book for java beginners. The objective is to create a guessing game wherein the target is located in 3 continuous

Apr 14, 2021 · I recently updated to Intellij 2021.1. However, whenever I try to run my program, I get: java: error: release version 17 not supported I have tried snooping around for other answers, and …

Nov 19, 2014 · I guess Java 8 made the PATH change and reinstalling Java7 did not update the PATH. Thus my eclipse was trying and failing to run under J8_x86, no matter how many times I reinstalled …

On Windows 10 I had just installed the JDK, and got these errors when checking the version. I had to delete all executable files starting with java (i.e. java.exe, javaw.exe and javaws.exe) from …

Apr 30, 2012 · CalculatorWithMemory.java:1: class Calculator is public, should be declared in a file named Calculator.java public class Calculator So my thought was that this means that I have to save …