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javac is not recognized as an internal or external command, operable program or batch file [closed]

...jre). Enter the directory. Then enter the bin directory of that. You are now in the correct directory. Copy the path. If in File Explorer, click the address bar. If in Command Prompt, copy the prompt. The resulting Java path should be in the form of (without quotes): C:\Program Files\Java\jdkxxx...
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Postgresql: password authentication failed for user “postgres”

... user as "postgres" and password "postgres", because it worked before. But now authentication is failed. I did it before a couple of times without this problem. What should I do? And what happens? ...
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How to create a fixed-size array of objects

... The best you are going to be able to do for now is create an array with an initial count repeating nil: var sprites = [SKSpriteNode?](count: 64, repeatedValue: nil) You can then fill in whatever values you want. In Swift 3.0 : var sprites = [SKSpriteNode?](repea...
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Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?

...d your credentials in your SO profile. It took me some digging around. But now that I see that you seem to work on the VM team, I'll accept your answer as the official answer. :) – Thierry-Dimitri Roy Mar 11 '11 at 18:03 ...
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How do I grant myself admin access to a local SQL Server instance?

...the command prompt to stop the SQL Server service: net stop mssqlserver Now go to the directory where SQL server is installed. The directory can for instance be one of these: C:\Program Files\Microsoft SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\Binn C:\Program Files\Microsoft SQL Server\MSSQL13.MS...
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Working with $scope.$emit and $scope.$on

...it -- dispatches the event upwards through the scope hierarchy. I don't know anything about your controllers (scopes) relation, but there are several options: If scope of firstCtrl is parent of the secondCtrl scope, your code should work by replacing $emit by $broadcast in firstCtrl: function f...
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Should .nuget folder be added to version control?

...uGet 4.x and .NET Standard 2.0, when you use the new csproj format you can now use package references, ironically reintroducing the dependency on msbuild to restore packages, but now packages are a first class citizen of msbuild. The link above also makes mention of the PackageReference, but the fo...
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How do Python functions handle the types of the parameters that you pass in?

... Python is strongly typed because every object has a type, every object knows its type, it's impossible to accidentally or deliberately use an object of a type "as if" it was an object of a different type, and all elementary operations on the object are delegated to its type. This has nothing to ...
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How to open multiple pull requests on GitHub

...d commits in git should not be though of as just a patch, but as a patch knowing what patch was applied before this. So this is why one should create a new branch with new commits, whose diffs are maybe still the same, but whose links to the previous commits are different. – M...
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Should 'using' directives be inside or outside the namespace?

...c void Bar() { double d = Math.PI; } } } Now imagine that someone adds another file (File2.cs) to the project that looks like this: // File2.cs namespace Outer { class Math { } } The compiler searches Outer before looking at those using directives out...