Programming Forums > Application Development > Java

Dark Flare Knight · May 13th, 2005, 3:45 PM

I need to make a program that does the following:

1) Allow the user to input the area of a square or a rectangle.
2) Display the perimeter of the object
3) Display the dimesions of the object.

The user only inputs the area, and the perimeter and the dimensions, the program is supposed to find. Can someone help me find the dimensions and perimeter?

ZenMasterJG · May 13th, 2005, 4:16 PM

Is this homework, or just somthing your trying to do yourself?
You'd have to assume that its a square, cuz with a rectangle the area can't determine the peimeter or dimensions.

Ooble · May 13th, 2005, 5:58 PM

It's simple: for a square, if the area is a^2, then the perimeter is 4a, and the dimensions are a by a. The program should be easy enough to write.

Childe Roland · May 14th, 2005, 10:51 AM

is there a method that lets you find the square root of a number?

HeX · May 14th, 2005, 10:58 AM

Quote:

Originally Posted by Childe Roland

is there a method that lets you find the square root of a number?

first you have to
import java.util.*;
and the method is:

(Toggle Plain Text)

Math.sqrt(number)

Childe Roland · May 14th, 2005, 11:03 AM

Thanks

HeX · May 14th, 2005, 11:05 AM

Anytime

Dark Flare Knight · May 14th, 2005, 6:05 PM

Quote:

Originally Posted by Ooble

It's simple: for a square, if the area is a^2, then the perimeter is 4a, and the dimensions are a by a. The program should be easy enough to write.

That is exactly what my teacher says but how do i get the dimensions? and i also need the optimum dimensions so it can also be a rectangle.

also, what does ^ mean?

Ooble · May 15th, 2005, 7:25 AM

The optimum dimensions... you mean the smallest dimensions for the biggest area? Have fun with that - I cannot remember how to calculate those, but I think it may be trial-and-error. And a^2 means "a squared", or "a to the power of 2", so "^" == "to the power of".

Dark Flare Knight · May 15th, 2005, 11:23 AM

Can someone else help me with this?

May 13th, 2005, 3:45 PM	#1
Dark Flare Knight Hobbyist Programmer Join Date: Mar 2005 Location: Canada Posts: 113 Rep Power: 4	Area and Perimeter I need to make a program that does the following: 1) Allow the user to input the area of a square or a rectangle. 2) Display the perimeter of the object 3) Display the dimesions of the object. The user only inputs the area, and the perimeter and the dimensions, the program is supposed to find. Can someone help me find the dimensions and perimeter?

May 13th, 2005, 5:58 PM	#3
Ooble I eat cake for breakfast. Join Date: Jul 2004 Location: In my box. Posts: 4,434 Rep Power: 9	It's simple: for a square, if the area is a^2, then the perimeter is 4a, and the dimensions are a by a. The program should be easy enough to write. __________________ Me :: You :: Them

May 14th, 2005, 11:05 AM	#7
HeX Programmer Join Date: May 2005 Location: Kosova Posts: 94 Rep Power: 4	Anytime __________________ (Toggle Plain Text) countdown++; countdown++;

May 15th, 2005, 7:25 AM	#9
Ooble I eat cake for breakfast. Join Date: Jul 2004 Location: In my box. Posts: 4,434 Rep Power: 9	The optimum dimensions... you mean the smallest dimensions for the biggest area? Have fun with that - I cannot remember how to calculate those, but I think it may be trial-and-error. And a^2 means "a squared", or "a to the power of 2", so "^" == "to the power of". __________________ Me :: You :: Them

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May 13th, 2005, 4:16 PM	#2
ZenMasterJG Hobbyist Programmer Join Date: Nov 2004 Location: Boston, MA Posts: 148 Rep Power: 4	Is this homework, or just somthing your trying to do yourself? You'd have to assume that its a square, cuz with a rectangle the area can't determine the peimeter or dimensions.

May 14th, 2005, 10:51 AM	#4
Childe Roland Newbie Join Date: Mar 2005 Posts: 17 Rep Power: 0	is there a method that lets you find the square root of a number?

May 14th, 2005, 11:03 AM	#6
Childe Roland Newbie Join Date: Mar 2005 Posts: 17 Rep Power: 0	Thanks

May 15th, 2005, 11:23 AM	#10
Dark Flare Knight Hobbyist Programmer Join Date: Mar 2005 Location: Canada Posts: 113 Rep Power: 4	Can someone else help me with this?

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Programming Forums > Application Development > Java

Area and Perimeter