Java Class and Java Factorial and Using Recursion program

Java Class

public class JavaClass

{

private String name;

{

}

public void setName(String n)

{

name = n;

}

public String getName()

{

return name;

}

public static void main(String args[])

{

JavaClassExample javaClassExample = new JavaClassExample();

javaClassExample.setName("Visitor");

System.out.println("Hello " + javaClassExample.getName());      

   }

}

Java Factorial

public class NumberFactorial

{

public static void main(String[] args)

{              

int number = 5;            

int factorial = number;            

for(int i =(number - 1); i > 1; i--)

{

factorial = factorial * i;

}       

System.out.println("Factorial of a number is " + factorial);

    }

}

Java Factorial Using Recursion

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader; 

public class JavaFactorialUsingRecursion

{       

public static void main(String args[]) throws NumberFormatException, IOException

{

System.out.println("Enter the number: ");

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

int a = Integer.parseInt(br.readLine());

int result= fact(a);

System.out.println("Factorial of the number is: " + result);

}     

static int fact(int b)

{

if(b <= 1)

return 1;

else

return b * fact(b-1);

   }

}