Java Exceptions Exceptions in Java represent errors that occur during execution of a program. Exception handling is used to avoid undesirable display errors, but also easier to correct any errors. To handle exceptions occurred during runtime uses: The try-catch-finally Exception thrown...
Java Packages A package is a collection of classes and related interfaces. Java packages are used to facilitate finding and using classes to avoid name conflicts and to control access to classes. To use a class or call a method of...
Java Interface A Java interface is a collection of abstract methods and constant declarations. A Java class can implement one or more interfaces. An interface can extend another interface using new methods abstract. To define a java interface uses keyword interface....
Java Inheritance is a fundamental concept in object-oriented programming (OOP) that allows classes to inherit properties and behaviors from other classes. Inheritance establishes a hierarchical relationship between classes, where a subclass (also known as a derived class) inherits the members of...
Java Methods A method defines the behavior of an object. The methods consist of modifiers, declaring a name for the method, data type that the method returns, parameters and a block of instructions that are executed when the method is executed....