added method for writing text to files

tools/cooja/java/se/sics/cooja/util/StringUtils.java

@@ -24,21 +24,23 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * $Id: StringUtils.java,v 1.2 2009/06/09 09:42:01 fros4943 Exp $
+ * $Id: StringUtils.java,v 1.3 2009/10/29 10:10:22 fros4943 Exp $
  */
 
 package se.sics.cooja.util;
 
 import java.io.File;
 import java.io.FileReader;
+import java.io.FileWriter;
 import java.io.IOException;
 import java.io.InputStreamReader;
+import java.io.PrintWriter;
 import java.net.URL;
 
 /**
  * Some utility methods for generating hex dumps.
  *
- * @author Niclas Finne
+ * @author Niclas Finne, Fredrik Osterlind
  */
 public class StringUtils {
 
@@ -152,4 +154,15 @@ public class StringUtils {
       return null;
     }
   }
+  
+  public static boolean saveToFile(File file, String text) {
+    try {
+      PrintWriter outStream = new PrintWriter(new FileWriter(file));
+      outStream.print(text);
+      outStream.close();
+      return true;
+    } catch (Exception ex) {
+      return false;
+    }
+  }
 }