java program for recursion

[oshiru]

i need some help to finish my assignment
following is the code
i want the main method to get an user input, it should be a GUI, since i don;t know swing i find it hard , please help me.. regards.. i want the interface to get a single integer and buttons to compute, factorial, triangle and partaily by giving a nother value to compute permutation or combination

import java.io.*;
class fcp
{
int factorialGen(int x){

int temp;
if(x==0){
temp=1;
}else if(x==1){
temp=1;
}else{
temp=x*factorialGen(x-1); //recurtion of function;
}
return temp;
}

int combination(int n,int r){
int x = factorialGen(n)/(factorialGen(r)*factorialGen(n-r));
return x;
}

int permutation(int n,int r){
int x = factorialGen(n)/factorialGen(r);
return x;
}

void triangle(int x){
for(int n=0;n<=x;n++){
for(int j=x;j>=0;j--){
System.out.println(" ");
}
for(int r=0;r<n;r++){
combination(n,r);
}

}
System.out.println("\n");

}

void pascalTrianglefactorial(int x){

System.out.println("The factorial value is"+factorialGen(x));
triangle(x);
}

[serjant]

Create JFrame ,add to it JPanel which will have JButton and JTextField,and add to the action listeners,which will produce and operate all the functions you need.

[Eranga]

Search on the Google, you can find lots of simple examples related to this. Just have a try first.

Try this one

[oshiru]

thnx alot guys..im absolutely new for this field

[Eranga]

Don't worry lol, just start from the basis. Work hard and try to do something yourself first. It makes a big difference.