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Explain how to send email using java?

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What is Pre-emptive scheduling?

What is the output of the following? // A simple example of recursion.class Factorial { // this is a recursive method int fact(int n) { int result; if(n==1) return 1; result = fact(n-1) * n; return result; }} class Recursion { public static void main(String args[]) { Factorial f = new Factorial(); System.out.println("Factorial of 3 is " + f.fact(3)); }}

A) Factorial of 3 is 3
B) Factorial of 3 is 6
C) Factorial of 3 is 9
D) None of the above