Can you help me to run the code? I am trying to execute the following:
public class HelloWorld {
public static void main (String[] args) {
System.out.println("Hello,world!");
}
}
To do that I click Run->Run (the second one with Alt+Shift+F10). It outputs a small window where the only available option is Edit configurations, I tried to do that but with no success.
While editing your first configuration.
Clik + button and choose Application template
In Main class: type HelloWorld or pick it from the picker ...
Related
psvm + tab would make:
public static void main(String[] args) {
}
And now I want to have cml for:
CommandLineRunner runner () {
return args -> {
};
}
How to add it in IDEA?
Checkout IntelliJ IDEA Live Templates documentation
Basically you can create abbreviations like that :
go to File -> Settings... -> Editor -> Live Templates
Add a live template with the + sign
define at least abbreviation and text template
define the appropriate JAVA context
That's it.
I have a custom launch configuration. It currently has a JavaArgumentsTab() where I can enter things for VM arguments and Program arguments. But how do I actually get any values entered there?
Ideally I would get them inside my LaunchConfigurationDelegate's launch() method. I expected to find any text entered as arguments inside the LaunchConfiguration or other parameters to that method, and I'm sure this is a newbie question, but I really haven't found anything promising.
TabGroup:
public class LaunchConfigurationTabGroup extends AbstractLaunchConfigurationTabGroup {
#Override
public void createTabs(ILaunchConfigurationDialog dialog, String mode) {
ILaunchConfigurationTab[] tabs = new ILaunchConfigurationTab[] {
new JavaArgumentsTab(),
new CommonTab()
};
setTabs(tabs);
} }
LaunchConfigurationDelegate:
public class LaunchConfigurationDelegate implements ILaunchConfigurationDelegate {
#Override
public void launch(ILaunchConfiguration configuration, String mode,
ILaunch launch, IProgressMonitor monitor) throws CoreException {
// How to get anything entered on my Java tab here...?
} }
Everything from the tabs should already have been set as attribute values in the ILaunchConfiguration when launch is called.
The settings from JavaArgumentsTab are stored in the attributes using constants from IJavaLaunchConfigurationConstants.
I have a small piece of code that should compile and allow the user to input a figure in the terminal window ( I am using Blue J).
However, while it does 'compile', I can never open, view or interact with the terminal window. I am met with a red "object box" instead.
I have been trying for a while to get around this problem and I can't seem to find the answer anywhere.
Here is the code used:
import java.util.Scanner;
public class PartA
{
public static void main(String[] args)
{
Scanner input = new Scanner(System.in);
System.out.println("Input your message: "); //this is the user promot
String message = input.nextLine();
System.out.println(message);
}
}
I've figured out the answer to this problem since posting.
While I was clicking on new PartA() to view the program in the terminal window, this only created an object (the red box). By clicking on public static void main(String[] args) (essentially a method as opposed to an object) I was able to view, and interact with the terminal window.
Environment:
I have a program - named CSIS - which I need to run a lot of automated tests on in Visual Studio 2010 using C#. I have a series of functions which need to be run in many different orders but which all start and end at the same 'home screen' of CSIS. The tests will either be run on their own as a single CodedUITest (.cs filetype) or as an ordered test (.orderedtest filetype).
Goal:
The goal is to open to the CSIS homepage once no matter which of the unit tests is run first and then, after all CodedUITests are finished, no matter which unit test is last, the automated test will close CSIS. I don't want to create a separate unit test to open CSIS to the homepage and another to close CSIS as this is very inconvenient for testers to use.
Current Solution Development:
UPDATE: The new big question is how do I get '[ClassInitialize]' to work?
Additional Thoughts:
UPDATE: I now just need ClassInitialize to execute code at the beginning and ClassCleanUp to execute code at the end of a test set.
If you would like the actual code let me know.
Research Update:
Because of Izcd's answer I was able to more accurately research the answer to my own question. I've found an answer online to my problem.
Unfortunately, I don't understand how to implement it in my code. I pasted the code as shown below in the 'Code' section of this question and the test runs fine except that it executes the OpenWindow() and CloseWindow() functions after each test instead of around the whole test set. So ultimately the code does nothing new. How do I fix this?
static private UIMap sharedTest = new UIMap();
[ClassInitialize]
static public void ClassInit(TestContext context)
{
Playback.Initialize();
try
{
sharedTest.OpenCustomerKeeper();
}
finally
{
Playback.Cleanup();
}
}
=====================================================================================
Code
namespace CSIS_TEST
{
//a ton of 'using' statements are here
public partial class UIMap
{
#region Class Initializization and Cleanup
static private UIMap sharedTest = new UIMap();
[ClassInitialize]
static public void ClassInit(TestContext context)
{
Playback.Initialize();
try
{
sharedTest.OpenWindow();
}
finally
{
Playback.Cleanup();
}
}
[ClassCleanup]
static public void ClassCleanup()
{
Playback.Initialize();
try
{
sharedTest.CloseWindow();
}
finally
{
Playback.Cleanup();
}
}
#endregion
Microsoft's unit testing framework includes ClassInitialise and ClassCleanUp attributes which can be used to indicate methods that execute functionality before and after a test run.
( http://msdn.microsoft.com/en-us/library/ms182517.aspx )
Rather than try and make the unit tests aware of their position, I would suggest it might be better to embed the opening and closing logic of the home screen within the aforementioned ClassInitialise and ClassCleanUp marked methods.
I figured out the answer after a very long process of asking questions on StackOverflow, Googling, and just screwing around with the code.
The answer is to use AssemblyInitialize and AssemblyCleanup and to write the code for them inside the DatabaseSetup.cs file which should be auto-generated in your project. You should find that there already is a AssemblyInitialize function in here but it is very basic and there is no AssemblyCleanup after it. All you need to do is create a static copy of your UIMap and use it inside the AssemblyInitialize to run your OpenWindow() code.
Copy the format of the AssemblyInitialize function to create an AssemblyCleanup function and add your CloseWindow() function.
Make sure your Open/CloseWindow functions only contains basic code (such as Process.Start/Kill) as any complex variables such as forms have been cleaned up already and won't work.
Here is the code in my DatabaseSetup.cs:
using System.Data;
using System.Data.Common;
using System.Configuration;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using Microsoft.Data.Schema.UnitTesting;
using System.Windows.Input;
using Keyboard = Microsoft.VisualStudio.TestTools.UITesting.Keyboard;
using Mouse = Microsoft.VisualStudio.TestTools.UITesting.Mouse;
using MouseButtons = System.Windows.Forms.MouseButtons;
namespace CSIS_TEST
{
[TestClass()]
public class DatabaseSetup
{
static private UIMap uIMap = new UIMap();
static int count = 0;
[AssemblyInitialize()]
public static void InitializeAssembly(TestContext ctx)
{
DatabaseTestClass.TestService.DeployDatabaseProject();
DatabaseTestClass.TestService.GenerateData();
if(count < 1)
uIMap.OpenWindow();
count++;
}
[AssemblyCleanup()]
public static void InitializeAssembly()
{
uIMap.CloseWindow();
}
}
}
I want to create a simple eclipse plugin, which does: When you right click a java project, it will show a popup menu which has a item has label "N java files found in this project", where "N" is the file count.
I have an idea that I can update the label in "selectionChanged":
public class CountAction implements IObjectActionDelegate {
public void selectionChanged(IAction action, ISelection selection) {
action.setText(countJavaFiles());
}
}
But it doesn't work if I don't click that menu item, since the CountAction has not been loaded, that selectionChanged won't be invoked when you right-click on the project.
I have spent a lot of time on this, but not solved. Please help me.
An alternative to the article suggested by #kett_chup, is to use IElementUpdater. Simply
your handler must implement IElementUpdater
the handler.updateElement((UIElement element, Map parameters) must set the wanted text using element.setText("new text") - this new text will show up in menus and toolbars
whenever you need/want to update the command text use ICommandService.refreshElements(String commandId, Map filter) with your particular command ID - the global command service usually is just fine
The IElementUpdater interface can also be used to change the checked state - for commands with style=toggle - as well as the icons and the tool tip.
At last, I found a very easy way to implement this:
I don't need to change my code(the sample code in question), but I need to add a small startup class:
import org.eclipse.ui.IStartup;
public class MyStartUp implements IStartup {
#Override
public void earlyStartup() {
// Initial the action
new CountAction();
}
}
And add following to plugin.xml:
<extension
point="org.eclipse.ui.startup">
<startup
class="myplugin.MyStartUp">
</startup>
This MyStartUp will load an instance of that action at startup, then selectionChanged will be invoked each time when I right-click the projects or files.