--%>

Public class in java

Q. Explain the concept of public classes in java. How they are useful? 

Ans. Public class methods and areas can be accessed from anywhere. But a file with java source code can only contain one public class whose name must also match, with the file name. If it presents, this public class corresponds to the application or the applet in which case the public keyword is essential to allow your web browser or applet viewer to demonstrate the applet.

Use of public classes:  If we want to offer access to these entities and if this access cannot do any harm public class is used.

Example:

Public class square

{    // public class

Public x, y, size;    // public instance variables

}

 

 

   Related Questions in Programming Languages

  • Q : Define Continue statement Continue

    Continue statement: A statement which might only be employed within the body of a loop. In case of a while loop or do loop, control passes instantly to the loop's terminating test. In case of a for loop, the control passes to the post-body update expr

  • Q : Explain Try statement Try statement :

    Try statement: The try statement performs as an exception handler - a position where exception objects are caught and dealt with. In its most common form, it comprises of a try clause, one or more catch clauses and the finally clause.

  • Q : Compute Days Between Ordering and

    An analyst in the quality assurance office reviews the time lapse between receiving an order and shipping an order. Any orders which have not been shipped in a day of the order being positioned are investigated. Build a function named ORD_SHIP_SF which computes the nu

  • Q : State the term URN State the term URN?

    State the term URN?

  • Q : Explain Functional programming

    Functional programming: It is a style of programming related with languages like Haskell. The functional programming languages are more strongly tied to a mathematical concept of `function' than imperative programming languages. This makes it simpler

  • Q : Write a program to print out ten random

    Write a program to print out ten random numbers from the following sets: a) {0, 1, 2, 3, 4, 5, ...99, 100} b) {1, 2, 3, 4, 5, 6} c) (10, 20, 30, 40, 50,...990, 1000} d) {-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5} e) {1.5, 2.0, 2.5, 3.0, 3.5}  

  • Q : What is Break statement Break statement

    Break statement: A statement employed to break out of a loop, switch statement or labeled block. In all situations, control continues with the statement instantly, subsequent to the containing block.

  • Q : What is Quotient Quotient: Whenever

    Quotient: Whenever integer division is executed, the outcome comprises of a quotient and a remainder. The quotient symbolizes the integer number of times which the divisor divides into the dividend. For example, in 5/3, 5 is the dividend and 3 is the

  • Q : Why is Java pure object oriented

    Explain the reasons that Java is pure object oriented programming language.

  • Q : Define the term CPU Scheduler Define

    Define the term CPU Scheduler?