finished part 1

lab9_processes/src/AProcess.java

@@ -9,17 +9,26 @@ public class AProcess {
 
 		// args is the command
 		ProcessBuilder pb = new ProcessBuilder(args);
-		Process process = pb.start();
 
-		// obtain the input and output streams
-		InputStream is = process.getInputStream();
-		InputStreamReader isr = new InputStreamReader(is);
-		BufferedReader br = new BufferedReader(isr);
+		try {
+			Process process = pb.start();
+
+			// obtain the input and output streams
+			InputStream is = process.getInputStream();
+			InputStreamReader isr = new InputStreamReader(is);
+			BufferedReader br = new BufferedReader(isr);
+
+			String line;
+			while ( (line = br.readLine()) != null)
+				System.out.println(line);
+
+			br.close();
+
+
+		} catch (IOException e) {
+		    System.out.println(e);
+		}
 
-		String line;
-		while ( (line = br.readLine()) != null)
-			System.out.println(line);
 
-		br.close();
 	}
 }