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JAVA Practicals list:

Serial No.	Sub-Pactical No.	Aim of the Pactical
1	1	Write a program to display “Welcome To Java World”.
	2	Write a program to find whether the number is prime or not.
	3	Write a program to print the Fibonacci series.
2	1	Write a Java Program that displays all the Java Features using Command line Argument.
	2	Write a program to find the average of n numbers stored in an Array.
	3	Write a Java Program to sort City Names in Ascending Order using Command LineArgument.
3	1	Write a Java Program to find Factorial of a Given Number using Command LineArgument.
	2	Describe abstract class called Shape which has three subclasses say Triangle, Rectangle,Circle. Define one method area() in the abstract class and override this area() in thesethree subclasses to calculate for specific object i.e. area() of Triangle subclass shouldcalculate area of triangle etc. Same for Rectangle and Circle.
	3	It is required to compute SPI (semester performance index) of n students of your collegefor their registered subjects in a semester. Declare a class called student having followingdata members: id_no , no_of_subjects_registered, subject_code , subject_credits,grade_obtained and spi.- Define constructor and calculate_spi methods.- Define main to instantiate an array for objects of class student to process data of nstudents to be given as command line arguments.
4	1	Write a program that illustrates interface inheritance. Interface P is extended by P1And P2. Interface P12 inherits from both P1 and P2.Each interface declares oneconstant and one method. Class Q implements P12.Instantiate Q and invokes each of itsmethods. Each method displays one of the constants.
5	1	Write a program which defines base class Employee having three data members, namelyname[30], emp_numb and gender and two methods namely input_data() and show_data().Derive a class SalariedEmployee from Employee and adds a new data member, namelysalary. It also adds two member methods, namely allowance (if gender is female HRA=0.1*salary else 0.09* salary. DA= 0.05*salary) and increment (salary= salary+0.1*salary).Display the gross salary in main class. (Tip: Use super to call base class’s constructor0).
	2	WAP that illustrates method overriding. Class A3 is extended by Class B3. Each of theseclasses defines a hello(string s) method that outputs the string “A3: Hello From” or “B3:Hello From” respectively. Use the concept Dynamic Method Dispatch and keyword super.
6	1	Write an abstract class shape, which defines abstract method area. Derive class circlefrom shape. It has data member radius and implementation for area function. Derive classTriangle from shape. It has data members height, base and implementation for areafunction. Derive class Square from shape. It has data member side and implementation forarea function. In main class, use dynamic method dispatch in order to call correct versionof method.
	2	Create an interface Shape2D which declares a getArea() method. Point 3D containscoordinates of a point. The abstract class Shape declares abstract display() method and isextended by Circle class. it implements the Shape2D interface. The Shapes classinstantiates this class and exercises its methods.
	3	Create a package “employee” and define a Class Employee having three data members,name, emp_num, and gender and two methods- input_data and show_data. Inherit classSalariedEmployee from this class and keep it in package “employee”. Add new variablesalary and methods allowance (if female hra=0.1* salary else 0.09* salary. DA=0.05*salary) and increment (salary= salary+0.01 * salary). Calculate gross salary in mainclass defined in the same package.
7	1	WAP using try catch block. User should enter two command line arguments. If only oneargument is entered then exception should be caught. In case of two command linearguments, if fist is divided by second and if second command line argument is 0 thencatch the appropriate exception.
	2	Define an exception called “NoMatchException” that is thrown when a string is notequal to “India”. Write a program that uses this exception.
8	1	The program to creates and run the following three threads. The first thread prints theletter ‘a’ 100 times.The second thread prints the letter ‘b’ 100 times.The third thread prints the integer 1 to 100.
	2	Write the thread program -1using Runnable interface.
	3	Write a program that client sends the data as redius of circle to server and server recived that data and send the resultant area of circle to requested client.
9	1	Write a program that takes two files names (source and destination) as command lineargument .Copy source file’s content to destination file. Use character stream class. Alsodo same using byte stream and buffer stream.
	2	Write a program which generates random integers and stores them in a file named“rand.dat”. The program then reads the integers from the file and displays on the screen.
10	1	Write a program which generates random integers and stores them in a file named“rand.dat”. The program then reads the integers from the file and displays on the screen.