default & static methods have bridged down the differences between interfaces and abstract classes. Interface default methods: It helps in avoiding utility classes, such as all the …

No, the structure you found is how Java handles it, (that is, with overloading instead of default parameters). For constructors, See Effective Java: Programming Language Guide's Item 1 tip …

Aug 29, 2008 · How do I use JUnit to test a class that has internal private methods, fields or nested classes? It seems bad to change the access modifier for a method just to be able to …

Oct 19, 2008 · In Java, are there clear rules on when to use each of access modifiers, namely the default (package private), public, protected and private, while making class and interface and …

Mar 6, 2017 · I am wondering when to use static methods? Say if I have a class with a few getters and setters, a method or two, and I want those methods only to be invokable on an instance …

Apr 21, 2010 · A helpful guidance technique to follow is to write an interface for your class before you start the implementation. Then when implementing, tell yourself that a method not in the …

Sep 3, 2008 · 871 Java is always pass by value, with no exceptions, ever. So how is it that anyone can be at all confused by this, and believe that Java is pass by reference, or think they …

May 26, 2017 · Methods: These methods should be grouped by functionality rather than by scope or accessibility. For example, a private class method can be in between two public instance …

what about using "this" with methods in Java? Is it optional or there are situations when one needs to use it obligatory? The only situation I have encountered is when in the class you …

Jan 11, 2010 · The only way to call a non-static method from a static method is to have an instance of the class containing the non-static method. By definition, a non-static method is …