EBK JAVA PROGRAMMING
9th Edition
ISBN: 9781337671385
Author: FARRELL
Publisher: CENGAGE LEARNING - CONSIGNMENT
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1. Design a new Triangle class that extends the abstract GeometricObject class. Write a test
program that prompts the user to enter three sides of the triangle, a color, and a Boolean value to
indicate whether the triangle is filled. The program should create a Triangle object with these sides
and set the color and filled properties using the input. The program should display the area,
perimeter, color, and true or false to indicate whether it is filled or not.
Create an abstract class called Employee that has an abstract method called calculatePay() which calculates the total pay per employee using the rate per hour = R100. The method should accept the number of hours the employee has worked. Create a child class called employeeChild and provide the implementation. In the main method invoke that method and get the number of hours worked from the user and pass it to the called method.
Complete the code for the following program. You are provided with an abstract
class called abst. Create a class that will be a child of abst and it will be called
usesAbst. Your program will have an int variable called value, and all the
appropriate methods, as well 2 constructors. The first constructor will simply set
the variable value to 0. The second constructor will set the variable value to equal
a passed in parameter. You do not have to comment your code.
public abstract class abst{
public abst () {
}
//Outputs to the screen the message Hello
public abstract void sayHello ();
//returns the stored int value
public abstract int getValue ();
//sets the int value to x
public abstract void setValue (int x);
//Outputs to the screen the message Another method
public void output () {
System.out.println("Another method");
public String tostring () {
return "This is an abstract class";
}
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