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How to create a file in a directory in java?
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The best way to do it is:
String path = "C:" + File.separator + "hello" + File.separator + "hi.txt";
// Use relative path for Unix systems
File f = new File(path);
f.getParentFile().mkdirs();
f.createNewFile();
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What is a practical use for a closure in JavaScript?
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a = (function () {
var privatefunction = function () {
alert('hello');
}
return {
publicfunction : function () {
privatefunction();
}
}
})();
As you can see there, a is now an object, with a method publicfunction ( a.publicfunction() ) which ca...
Can I use `pip` instead of `easy_install` for `python setup.py install` dependency resolution?
... you want proof of this, try pip install -e git+https://github.com/octocat/Hello-World.git#egg=Hello-World. The error is No such file or directory: 'c:\python\src\Hello-World\setup.py
– cowlinator
Oct 24 '19 at 0:30
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[SOLVED] Can't send payload > 23bytes(MTU setted to 128bytes) - #9 by ...
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1
Hello dears,
I'm newbie here and trying to send big strings, like 128bytes from the app to my hardware(ESP32).
From the app side I have a text box that is sending the string to ESP32, all working except when I try to send str...
How to get a variable name as a string in PHP?
...able (even if it's a reference). You could pass something anonymous, like "hello", but once inside your function, it's whatever variable you name it as. This is fairly fundamental to code separation: if a function relied on what a variable used to be called, it would be more like a goto than a prope...
Why do you need to invoke an anonymous function on the same line?
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function make_greeter(msg){
return function() { alert(msg) };
}
var hello = make_greeter("Hello!");
hello();
It's just how nearly every programming language but Java works.
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Command line to remove an environment variable from the OS level configuration
...'t seem to work - or I'm misunderstanding something basic. I do setx JUNK Hello. Open new cmd. Type echo %JUNK% and get Hello. Then I do REG delete "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /F /V JUNK, and confirm that value is gone from registry. I open new cmd and typ...
Can linux cat command be used for writing text to file?
...with environment variables using echo:
echo -e "
Home Directory: $HOME \n
hello world 1 \n
hello world 2 \n
line n... \n
" > file.txt
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Why is the String class declared final in Java?
...agemnt. Try to create two identical string one after another, for example "hello". You will notice, if you debug, that they have identical IDs, that means that they are exactly THE SAME objects. This is due to the fact that Java let's you do it. This wouldn't be posssible if the strings were muttabl...
ExpressJS How to structure an application?
...ng a new route definition and implementation is really easy. For examples, hello.js:
function hello(req, res) {
res.send('Hello world');
}
module.exports = function (app) {
app.get('/api/hello_world', hello);
};
Each route module is standalone.
...