runtimeexception

I'm trying to throw an exception in my code like this: throw RuntimeException(msg); But when I build in NetBeans I get this error: C:\....java:50: cannot find symbol symbol : method RuntimeException(java.lang.String) location: class ... throw RuntimeException(msg); 1 error Do I need to import something? Am I misspelling it? I'm sure I must be doing something dumb :-( j flemm throw new RuntimeException(msg); You need the new in there. It's creating an instance and throwing it, not calling a method. jjnguy An Exception is an Object like any other in Java. You need to use the new keyword to

I've an application that you can show and close several Dialogs with: showDialog(...) removeDialog(...) I play a little bit with the application and when there is no any Dialog on the screen, I press the menu button and I go to the main android screen. After a while, I enter again into my application and sometimes, I get this RuntimeException: java.lang.IllegalArgumentException: Activity#onCreateDialog did not create a dialog for id 4 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2596) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2621) at

Updated #1: more info added to the end of this post I'm new to Android development and testing. I have three Espresso tests. First test passes, but the second one will not run because the call to getActivity() in setUp() method before the second test always fails: Blockquote java.lang.RuntimeException: Could not launch intent Intent { act=android.intent.action.MAIN flg=0x10000000 cmp=my.packagename/.ActivityMain } within 45 seconds. ... The third test passes. I don't have any long running operations, animations or network calls on creation. I can click through all menu items in my app manually

I've got a code with an ASyncTask and the problem is that when I execute it several times it crashes with this exception: RuntimeException: Only one Looper may be created per thread But then I've read this: https://stackoverflow.com/a/7781280/869180 and I remembered that I had a similar error in the past and it was related to the UI stuff (a ProgressDialog in my case) created in the ASyncTask. So I took off all the UI stuff from the ASyncTask and I removed Looper.prepare too, to avoid that RuntimeException, but know I'm getting this: 12-21 00:34:17.363: W/System.err(18658): java.lang

I have Parse initialization in a class named (ParseInitialization.java) that extends Application and while running my application (MainActivity.java) I got a RuntimeException and whene I call Parse.initialize inside onCreate in (MainActivity.java) I got a NullpointException here is my code: MainActivity.java package com.example.baharat2; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.view.Menu; import android.view.MenuInflater; import com.parse

I am working on single line lambda and run time exceptions. I have tested following use cases and found statement 1 is not compiling where as statement 2 is compiling fine. new Thread(() -> throw new RuntimeException("test")); // 1 new Thread(() -> new RuntimeException("test")); //2 Please help me understand why statement 1 is not compiling but statement two is compiling fine. A lambda expression is defined (in JLS 15.27. Lambda Expressions ) as: LambdaExpression : LambdaParameters -> LambdaBody A LambdaBody is defined as: LambdaBody : Expression Block In both your lambda expressions, you don