Explain Downcast with example
Explain Downcast with example: It is a cast towards an object's dynamic kind - that is, `down' the inheritance hierarchy. For illustration: // Downcast from Object to String String s = (String) o;
Explain Downcast with example: It is a cast towards an object's dynamic kind - that is, `down' the inheritance hierarchy. For illustration:
// Downcast from Object to String String s = (String) o;
Class inheritance: Whenever a super class is expanded through a sub class, a class inheritance relationship exists among them. The sub class inherits the attributes and methods of its super class. Class inheritance in Java, is single
Briefly describe object-oriented programming (OOP)?
Swapping: An {operating system} is frequently able to run programs which need more memory than is physically accessible on the host system. In order to do this, the complete memory needed is broken down into smaller pieces that are swapped in whenever
Import statement: A statement which makes the names of one or more interfaces or classes accessible in a different package from the one in which they are stated. Import statements pursue any package declaration {package!declaration}, and precede any i
State the various security features within the UNIX?
Pop-up menu: A menu of actions which is generally not visible on the screen till a mouse button is clicked. The Popup menus assist to keep a user interface from becoming cluttered.
TCP endpoint: It is the combination of an IP address and Transmission Control Protocol (abbreviated as TCP) port number.
Define the term Host system: It is a computer system on which a process is executed or run.
Do loop: This is one of Java's three control structures employed for looping. The other two are the for loop and while loop. A do loop comprises of a loop body and a Boolean expression. The condition is tested subsequent to the loop body has been fini
Write down some of the restrictions imposed by using a Security Manager on Applets?
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