Create a class called ‘Matrix’ containing constructor that initializes the number of rows and number of columns of a new Matrix object. The Matrix class has the following information: 1 – number of rows of matrix 2 – number of columns of matrix 3 ...
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StudentRecord is superclass and Record is subclass. When we are accessing the variable in Record class, so compiler always prints the variable declared in same class. To access the variable of StudentRecord we will use what ? Implement the statement.
Write a Java program to create three radio buttons. When any of them is selected, an appropriate message is displayed.
Create a class A having two methods with name show(). Create a subclass B of class A containing method show(). Call all three show() methods in order to explain the concept of method overriding and overloading.
What do you understand by an instance variable and a local variable?