NumberFormatException when I try to parseInt() from a String out of a number-only EditText

[JordanRulz]

this happens when i try to parseint from a String out of a numberonly EditText:

03-19 04:39:34.597: E/AndroidRuntime(339): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)

03-19 04:39:34.597: E/AndroidRuntime(339): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)

03-19 04:39:34.597: E/AndroidRuntime(339): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)

03-19 04:39:34.597: E/AndroidRuntime(339): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659)

03-19 04:39:34.597: E/AndroidRuntime(339): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)

03-19 04:39:34.597: E/AndroidRuntime(339): at android.app.Activity.dispatchTouchEvent(Activity.java:2061)

03-19 04:39:34.597: E/AndroidRuntime(339): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643)

03-19 04:39:34.597: E/AndroidRuntime(339): at android.view.ViewRoot.handleMessage(ViewRoot.java:1691)

03-19 04:39:34.597: E/AndroidRuntime(339): at android.os.Handler.dispatchMessage(Handler.java:99)

03-19 04:39:34.597: E/AndroidRuntime(339): at android.os.Looper.loop(Looper.java:123)

03-19 04:39:34.597: E/AndroidRuntime(339): at android.app.ActivityThread.main(ActivityThread.java:4363)

03-19 04:39:34.597: E/AndroidRuntime(339): at java.lang.reflect.Method.invokeNative(Native Method)

03-19 04:39:34.597: E/AndroidRuntime(339): at java.lang.reflect.Method.invoke(Method.java:521)

03-19 04:39:34.597: E/AndroidRuntime(339): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)

03-19 04:39:34.597: E/AndroidRuntime(339): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)

03-19 04:39:34.597: E/AndroidRuntime(339): at dalvik.system.NativeStart.main(Native Method)

03-19 04:39:34.597: E/AndroidRuntime(339): Caused by: java.lang.reflect.InvocationTargetException

03-19 04:39:34.597: E/AndroidRuntime(339): at org.jordanrulz.robotdriver.RobotDriver.connectrobot(RobotDriver.java:45)

03-19 04:39:34.597: E/AndroidRuntime(339): at java.lang.reflect.Method.invokeNative(Native Method)

03-19 04:39:34.597: E/AndroidRuntime(339): at java.lang.reflect.Method.invoke(Method.java:521)

03-19 04:39:34.597: E/AndroidRuntime(339): at android.view.View$1.onClick(View.java:2026)

03-19 04:39:34.597: E/AndroidRuntime(339): ... 22 more

03-19 04:39:34.597: E/AndroidRuntime(339): Caused by: java.lang.NullPointerException

03-19 04:39:34.597: E/AndroidRuntime(339): ... 26 more

[JordanRulz]

all my code you need to know:

public void connectrobot(View v) throws NullPointerException{
 String robotip1 = robotip.toString();
 String robotport1 = robotport.toString();
 try {
 robotport2 = Integer.parseInt(robotport1);
 }
 catch (NumberFormatException e2) {
  Log.i("NumberFormatException: " ,e2.getMessage());
 }
 try {
  robotip2 = InetAddress.getByName(robotip1);
 } catch (UnknownHostException e1) {
  // TODO Auto-generated catch block
  conerror.makeText(this, "Error connecting: " + e1.getMessage(), 2);
  conerror.show();
 }
 try {
  robotcon = new Socket(robotip2,robotport2);
 } catch (Exception e) {
  // TODO Auto-generated catch block
  conerror.makeText(this, "Error connecting: " + e.getMessage(), 2);
  conerror.show();


 }

conerror is a Toast

robotip is a text EditText

robotport is a numberonly EditText

this is for a robot i need to make for a school project

[zibizzz]

try:

 

robotport.gettext().toString()

 

also check for null in robotport