factorial....God what is the code??

[cess]

i think this is not right!!!!

import java.io.*;
 public class factorial{
  public static void main (String args[])throws Exception
 {
  String number;
  int numberInteger;
  int n;
  
      System.out.print("Input number:");
	  InputStreamReader no= new InputStreamReader(System.in);
      BufferedReader num=new BufferedReader(no);
      number=num.readLine();
      numberInteger=Integer.parseInt(number);
     {
              
  {
              
    while (n!=0)
    n=numberInteger;
    {
    System.out.println("Result:"+n);
    System.out.println("Factorial:"+(n));
       
     } 
 
      }
}
}

}

[r035198x]

i think this is not right!!!!

import java.io.*;
public class factorial{
public static void main (String args[])throws Exception
{
String number;
int numberInteger;
int n;
 
System.out.print("Input number:");
	 InputStreamReader no= new InputStreamReader(System.in);
BufferedReader num=new BufferedReader(no);
number=num.readLine();
numberInteger=Integer.parseInt(number);
{
 
{
 
while (n!=0)
n=numberInteger;
{
System.out.println("Result:"+n);
System.out.println("Factorial:"+(n));
 
} 
 
}
}
}

}

You should know the formula for factorial. What is it?

[cess]

You should know the formula for factorial. What is it?

i think this is: if the user inputs 5, the result is: 5*4*3*2*1 and the product of that which is 120

[r035198x]

i think this is: if the user inputs 5, the result is: 5*4*3*2*1 and the product of that which is 120

Correct. Now generalize it.

Given any integer n, what is the factorial of n in terms of n only?

[hirak1984]

I hate giving codes.Next time you should come up with posts after you have gone through the topic,yourself well.

 public class Factorial {
 
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int i=3,j,fact=0;
fact=Fact(i);
System.out.println(fact);
}
static int Fact(int j)
{
if(j==1)
return j;
else
return (j*Fact(j-1));
}
}

[r035198x]

I hate giving codes.Next time you should come up with posts after you have gone through the topic,yourself well.

 public class Factorial {
 
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int i=3,j,fact=0;
fact=Fact(i);
System.out.println(fact);
}
static int Fact(int j)
{
if(j==1)
return j;
else
return (j*Fact(j-1));
}
}

Ah hirak, you just spoiled it. I think the OP would have learnt more if they'd gone on to figure the formula and use it themselves.

[cess]

Ah hirak, you just spoiled it. I think the OP would have learnt more if they'd gone on to figure the formula and use it themselves.

Yah your right!!! tnx for the support!!!!

[cess]

I hate giving codes.Next time you should come up with posts after you have gone through the topic,yourself well.

 public class Factorial {
 
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
int i=3,j,fact=0;
fact=Fact(i);
System.out.println(fact);
}
static int Fact(int j)
{
if(j==1)
return j;
else
return (j*Fact(j-1));
}
}

I'M sorry guy!!!! If you hate giving codes, then DO'NT give anymore... In fact, your given CODE doesn't work...

[Ganon11]

it should probably be

fact = Factorial.Fact( i);

instead of

fact = Fact(i);

Fact(int) is a static method and, therefore, must be accessed using the class name.

[hirak1984]

It is not Factorial.Fact( i) because both main() and fact() method being in the same class we can call it directly.(At least in my eclipse)
If this code doesnot work in your environment,ple ase post the errors .
It worked fine in my eclipse 3.1
may be you guys use bitta advanced version!!!!!!!! !!!!!!!!!!!

it should probably be

fact = Factorial.Fact( i);

instead of

fact = Fact(i);

Fact(int) is a static method and, therefore, must be accessed using the class name.

[r035198x]

I'M sorry guy!!!! If you hate giving codes, then DO'NT give anymore... In fact, your given CODE doesn't work...

When you say the code does not work, please give the error message or exception trace. don't just say it doesn't work.

And we don't hate giving the codes. We hate doing students' assignments where the students themselves are not willing to put in any work themselves.

[r035198x]

It is not Factorial.Fact( i) because both main() and fact() method being in the same class we can call it directly.(At least in my eclipse)
If this code doesnot work in your environment,ple ase post the errors .
It worked fine in my eclipse 3.1
may be you guys use bitta advanced version!!!!!!!! !!!!!!!!!!!

The reason why you can call Fact inside main using only the method name is not only because they are in the same class in this case. It is because Fact is declared as static. Since both main and Fact are static and are in the same class, you can call one from the other without needing an object of the class' type.

[hirak1984]

ya thats a very nice explanation.tha nks

The reason why you can call Fact inside main using only the method name is not only because they are in the same class in this case. It is because Fact is declared as static. Since both main and Fact are static and are in the same class, you can call one from the other without needing an object of the class' type.

[cess]

When you say the code does not work, please give the error message or exception trace. don't just say it doesn't work.

And we don't hate giving the codes. We hate doing students' assignments where the students themselves are not willing to put in any work themselves.

I'm sorry... I am just down of what h**** is saying...peace! !!

[r035198x]

I'm sorry... I am just down of what h**** is saying...peace! !!

Did you get it to work then?