Unit -2: Inheritance and sub classing in Java and packages and use of access specifiers

• Defining subclasses
• Using super to use constructor of a super-class, Method overriding and use of super, Variable shadowing and use of super.
• Method and variable binding
• Using final with variables, methods and classes
• Abstract classes and interfaces, Abstract classes and abstract methods
• Single inheritance of classes, Interfaces
• Object class as the super class of all classes, Methods inherited from the Object class
• Uses of package and import statements, use of static imports
• Use of CLASSPATH for class loading
• Access specifiers, Access specifiers for members of a package, Access specifiers for members of a class, Access specifiers for overriding methods
• Using the Java APIs
• Commonly used classes from the java. language package
• Comparable and Comparator interfaces
• String, String Buffer and the String Builder classes
• Understanding pass by value and pass by reference for Java
• Wrapper classes
• Math class constants and methods

Also See Unit 1

Download Unit 2 PPT

Posted in: Java,MCA,MCA Semester 3