Find errors in this code. But please be fast.

Question

1.00/5 (4 votes)

See more:

Java

public class Main{
   public static void main(String [] args){
       Persegi persegi = new Persegi();
       persegi.sisi = 8;
       System.out.println(persegi.computeArea());
   }
}

public interface BangunDatar {
   public float computeArea();
   public float computeAround();
}

public class Persegi implements BangunDatar {
   public int sisi;

   public Persegi(){}
   public Persegi(int sisi) {
       super();
       this.sisi = sisi;
   }
@Override
   public float computeArea() {
       // TODO Auto-generated method stub
       return this.sisi*this.sisi;
   }

   @Override
   public float computeAround() {
       // TODO Auto-generated method stub
       return 4*this.sisi;
   }

}

public class BangunRuang implements BangunDatar {

   @Override
   public float computeArea() {
       // TODO Auto-generated method stub
       return 0;
   }

   @Override
   public float computeAround() {
       // TODO Auto-generated method stub
return 0;
   }

   public float computeVolume() {
       return 0;
   }

}

public class Kubus extends BangunRuang implements BangunDatar {
   public int rusuk;

   public Kubus(int rusuk) {
       super();
       this.rusuk = rusuk;
   }

   @Override
   public float computeArea() {
       // TODO Auto-generated method stub
       return 6*this.rusuk*this.rusuk;
   }

   @Override
   public float computeAround() {
       // TODO Auto-generated method stub
       return 12*this.rusuk;
}

   @Override
   public float computeVolume() {
       // TODO Auto-generated method stub
       return this.rusuk*this.rusuk*this.rusuk;
   };
}

What I have tried:

Java

public class Main{
   public static void main(String [] args){
       Persegi persegi = new Persegi();
       persegi.sisi = 8;
       System.out.println(persegi.computeArea());
   }
}

public interface BangunDatar {
   public float computeArea();
   public float computeAround();
}

public class Persegi implements BangunDatar {
   public int sisi;

   public Persegi(){}
   public Persegi(int sisi) {
       super();
       this.sisi = sisi;
   }
@Override
   public float computeArea() {
       // TODO Auto-generated method stub
       return this.sisi*this.sisi;
   }

   @Override
   public float computeAround() {
       // TODO Auto-generated method stub
       return 4*this.sisi;
   }

}

public class BangunRuang implements BangunDatar {

   @Override
   public float computeArea() {
       // TODO Auto-generated method stub
       return 0;
   }

   @Override
   public float computeAround() {
       // TODO Auto-generated method stub
return 0;
   }

   public float computeVolume() {
       return 0;
   }

}

public class Kubus extends BangunRuang implements BangunDatar {
   public int rusuk;

   public Kubus(int rusuk) {
       super();
       this.rusuk = rusuk;
   }

   @Override
   public float computeArea() {
       // TODO Auto-generated method stub
       return 6*this.rusuk*this.rusuk;
   }

   @Override
   public float computeAround() {
       // TODO Auto-generated method stub
       return 12*this.rusuk;
}

   @Override
   public float computeVolume() {
       // TODO Auto-generated method stub
       return this.rusuk*this.rusuk*this.rusuk;
   };
}

Posted 13-Jul-22 4:22am

Anchal sharma 2022

Updated 13-Jul-22 5:05am

Richard MacCutchan

v3

Add a Solution

Comments

0x01AA 13-Jul-22 10:31am

Sir, is it ok for you to have have an answer in about 2 hours?

Anchal sharma 2022 13-Jul-22 10:47am

Hello, Thank you but you can leave this as this is done . I don't want to waste your time.

Richard Deeming 13-Jul-22 10:31am

No.

Nobody here is going to do your homework for you.

And demanding that we do it "fast" simply tells us that you can't be bothered to manage your own time, so any attempt to help you is pointless.

Richard MacCutchan 13-Jul-22 10:39am

The answer is 64.0.

CPallini 13-Jul-22 10:41am

I reckon 'Persegi' is Rectangle.
I reckon 'Kubus' is 'Cube'.
Now, what (the fresh Hell) is a 'BangunRuang' ?

0x01AA 13-Jul-22 10:47am

Bangun ruang platonik - Wikipedia bahasa Indonesia, ensiklopedia bebas[^] ;p :-)

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2022-07-13T04:31:00

We can't, for a number of reasons:
1) We have no idea what the code is meant to do, so we have no idea if what it does do is by intent or an error.

2) We have no idea how to use your code, or what test data it expects.

And even if we did and could, there is also this:

3) While we are more than willing to help those that are stuck, that doesn't mean that we are here to do it all for you! We can't do all the work, you are either getting paid for this, or it's part of your grades and it wouldn't be at all fair for us to do it all for you.

So we need you to do the work, and we will help you when you get stuck. That doesn't mean we will give you a step by step solution you can hand in!
Start by explaining where you are at the moment, and what the next step in the process is. Then tell us what you have tried to get that next step working, and what happened when you did.

If you are having problems getting started at all, then this may help: How to Write Code to Solve a Problem, A Beginner's Guide[^]

Mike Hankey · Answer 2 · 2022-07-13T05:05:00

Solution 2

No problem

My rates;

$75/hr. 24hr turn around
$125/hr, fast turn around

Please let me know quickly

Posted 13-Jul-22 5:05am

Mike Hankey

Comments

OriginalGriff 13-Jul-22 11:14am

You forgot "Pro Froma" for new customers. :D

Mike Hankey 13-Jul-22 11:22am

Only except wire transfers... :)

Dave Kreskowiak 13-Jul-22 12:01pm

You forgot the "minimum 4 hours, even if it take 5 minutes. Payable up front."

Mike Hankey 13-Jul-22 12:21pm

Ah good point, I'll amend the contract!

0x01AA 13-Jul-22 12:40pm

Even I can feel with that answer, we should take care HOW TO ANSWER A QUESTION - C# Discussion Boards[^] and here 'Insults, slap-downs and sarcasm aren't welcome. Let's work to help developers, not make them feel stupid..'

Dave Kreskowiak 13-Jul-22 15:21pm

I reserve the right to slap the sh*t out of the "do my work for me" people.

CHill60 14-Jul-22 5:19am

Besides, that was on the C# forum and this was tagged "Java" - so we're good :-)

Mike Hankey 13-Jul-22 15:24pm

If you have the temerity to ask me to do your work for you and then the brass gonads to do it quick...all I can say is your fair game.