The classes Reader and Writer are derived from the class _________.

Related MCQs

• Given the following code:~~~class Base { int x = 10; }~~~class Derived extends Base~~~{ int x = 20; }~~~Base b = new Base();~~~Derived d = new Derived ( );~~~Base bd = new Derived(); The statement~~~System.out.println(b.x + " " + d.x + " " + bd.x);~~~will produce the output
• State true or false (i) JPanel is a class included in awt package (ii) Anonymous classes are mostly used for event handling (iii) Names of anonymous classes must be unique (iv) JOptionPane is an inner class
• Which class is the super class of all classes of the java.lang package?
• The concept of derived classes is involved in _________.
• The concept of multiple inheritance is implemented in Java by ____ (i.) extending two or more classes (ii.) extending one class and implementing one or more interfaces (iii.) implementing two or more interfaces (iv.) all of these
• Which is the super class of all exception classes
• The class RuntimeException is the superclass of which of the following classes?
• Which of these class is a superclass of all other classes?
• The term _____________ refers to a class's direct ancestor or to any of its ascendant.~~~classes.
• How do you create a Reader object from an InputStream object?