Writing a port scanner in Java

[DarkShadowST]

I consider myself a complete noob when it comes to java.....
A couple minutes before finding this, I wrote this....doesn't it do the same thing?

import java.io.*;
import java.net.*;

public class PortScan {
	
	public static void main(String[] args) throws IOException {
		
		Socket j = new Socket();
		BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
		BufferedWriter outFile = new BufferedWriter(new FileWriter(new File("PortScan.txt")));
		
		System.out.println("IP Address or Computer Name?");
		String compname = input.readLine();
		System.out.print("\nFrom: ");
		String x1 = input.readLine();
		int start = 0; int finish = 0;
		System.out.print("\nTo: ");
		String x2 = input.readLine();
		
		try {
			start = (Integer.parseInt(x1));
			finish = (Integer.parseInt(x2));
		}
		catch(Exception gay1) {
			System.out.println("Invalid Ports");
			System.exit(1);
		}
		
		System.out.println("Scanning...");
		for(int x = start; x <= finish; x++) {
			System.out.println("Checking Port " + x);
			outFile.write("Port " + x + ":");
			try {
				j = new Socket(compname,x);
				System.out.println("Port Open");
				outFile.write(" Open");
				outFile.newLine();
			}
			catch(Exception gay2) {
				System.out.println("Port Closed");
				outFile.write(" Closed");
				outFile.newLine();
			}
		}
		outFile.close();
		System.out.println("\nScan Complete");
	}
}