Java

jonig19 wrote:

I'm having troubles learning the concept of classes that extend Comparable

jonig19 wrote:

Same thing with abstract classes

private void jButton13ActionActionPerformed(ActionEvent event) {
cmdExec cmd = new cmdExec();
String s = (cmd.run("ping www.google.co.uk"));
jTextPane0.setText(jTextPane0.getText() + s + "\n-----------------------------\n");
}

package webtools;

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class cmdExec {
	public String run(String cmdLine) {
		String line;
	    String output = "";
	    try {
	        Process p = Runtime.getRuntime().exec(cmdLine);
	        BufferedReader input = new BufferedReader
	            (new InputStreamReader(p.getInputStream()));
	        while ((line = input.readLine()) != null) {
	            output += (line + '\n');
	        }
	        input.close();
	        }
	    catch (Exception ex) {
	        ex.printStackTrace();
	    }
	    return output;
	}
}

public String returnStringAtIndex(int index)
{
    return this.get(index);
}

jharker1987 wrote:

is it right that Java doesnt support indexers?