What are the principle concepts of oops, What are the principle concepts of...

What are the principle concepts of OOPS? Principle concepts upon that object oriented programming and design rest. They are: Abstraction: Abstraction refers to the act of

What is the use of throws keyword, What is the use of throws keyword ? ...

What is the use of throws keyword ? Rather than explicitly catching an exception you can declare in which your method throws the exception. This passes the repsonsibility to h

File I/O, Write a program that reads both the girl and boy files into memor...

Write a program that reads both the girl and boy files into memory using arrays. Then, allow the user to input a name. The program should search through both arrays. If there is

Travelling salesman animation, how to implement tsp problem using java appl...

how to implement tsp problem using java applet to present in form of visulation

Explain subclasses and polymorphism, Explain Subclasses and Polymorphism ? ...

Explain Subclasses and Polymorphism ? Car and Motorcycle are subclasses of MotorVehicle. If you instantiate a Car or a Motorcycle along with new, you can use in which object a

Life span of variables, While you declare a variable in a function, the var...

While you declare a variable in a function, the variable can be accessed within that function only.  While you exit the function, the variable is destroyed.  These variables are ca

The tic-tac-toe program, Instructions Modify the program so that the co...

Instructions Modify the program so that the computer will generate moves for the ‘O' player (it must continue to accept user input for ‘X'). A simple way to do this is to use a

Interface, what is an Interface?

what is an Interface?

Create sudoku in java, The SudCell Class A single cell in a Sudoku ...

The SudCell Class A single cell in a Sudoku must clearly represent a number from 1 to 9 .  But in a solver context, we need much more.  It isn't enough to say "this c

Nested classes and Outer and inner classes,