Java | JSP | JSF Answers

Have you any idea how to get information from a class to appear in a text area on a GUI when you click a word in a list box on the GUI?

So the question is:
The goal is to remove all points outside this rectangle from the Cloud much like you would crop an image. The crop method must deal with two input points on a horizontal or vertical line segment, in which case all points not on the line segment are removed, and it must deal with two equal Points p1 and p2, in which case all Points but p1 are removed from the Cloud.

So say for example I have a cloud of:

[(3.0,1.0), (2.0,2.0), (1.5,1.5), (3.0,0.0)]

and I call my crop method on p1,p4 I should come up with:

[(3.0,1.0), (3.0,0.0)]

I have a solution how would somoene else go about solving it(most efficent way possible)

write a program to accept the name of a student and 10 subject marks of the student.calculate the total and the average.

XYZ Supermarket wants a program that will prompt for the product code, pricing code, price and quantity of an article. Your program is then to calculate a discount rate according to the pricing code. The program will also ask the address and if the user wants overnight shipping. Regular shipping for items total under $100 is $20.00; for items total $100 or more shipping is $30.00. For overnight delivery add $50.00. Print to the screen all the entered data of the article, the discount amount and the new discounted price

how to program this using two for loops in java
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Write a void method Shift that takes three parameters A, p, d.
A is an array, p is the number of positions and d is the direction (L = left, R = right). The method should shift the contents of A p positions in the d direction.
(B) To test your method, write a program that reads an array of 10 elements then calls Shift twice and prints the array after each call.

Create a class called Invoice that a hardware store might use to represent an invoice for an item sold at the store. An Invoice should include four pieces of information as instance variables: a part number (type String), a part description (type string), a quantity of the item being purchased (type int) and a price per item (double). Your class should have a constructor that initializes the four instance variables. Provide a set and get method for each instance variable. In addition provide a method named getInvoiceAmount that calculates the invoice amount (i.e. multiplies the quantity the price per item), then returns the amount as a double value. If the quantity is not positive, it should be set to 0. If the price per item is not positive, it should be set to 0.0. Write a test application named InvoiceTest that demonstrates class Invoice’s capabilities.

store six of your friend's age in a single array. Assign the ages in a random order. Displaye ages, on reverse order.

accept marks of five students and then displays their average. The program shoud not accept mark which is less than 0 and mark greater than 100. use array concept.

computes the sum of the following series.
Sum=1!+2!+3!+4!+........n!