ProcessUsage.java

package test.slicer.common;

import java.io.*;

public class ProcessUsage {
	 static void runCommand(String cmd) {
		try {
			Process process = Runtime.getRuntime().exec(cmd);
			try {
				process.waitFor();
				process.getOutputStream();
				process.getInputStream();
				process.exitValue();
				process.getErrorStream();
				
			} catch (InterruptedException e) {
				System.out.println("dot error.");
			}
		} catch (SecurityException e) {
			System.err.println("Security error!");
			e.printStackTrace(System.err);
		} catch (NullPointerException e) {
			System.err.println("Command is null!");
			e.printStackTrace(System.err);
		} catch (IllegalArgumentException e) {
			System.err.println("Command is empty!");
			e.printStackTrace(System.err);
		} catch (IOException e) {
			System.err.println("IO error!");
			e.printStackTrace(System.err);
		}

	}
	 

	public static void main(String[] args) {
		runCommand("dir");
	}

}