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Java: Multiple class declarations in one file
...ice but allowed by the spec. I would urge people not to write public int[] foo(int x)[] { return new int[5][5]; } as well, even though that's valid.)
– Jon Skeet
Apr 6 '15 at 15:50
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How do I convert a String to an int in Java?
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String myString = "1234";
int foo = Integer.parseInt(myString);
If you look at the Java documentation you'll notice the "catch" is that this function can throw a NumberFormatException, which of course you have to handle:
int foo;
try {
foo = Integer.p...
A Java API to generate Java source files [closed]
...his code:
JCodeModel cm = new JCodeModel();
JDefinedClass dc = cm._class("foo.Bar");
JMethod m = dc.method(0, int.class, "foo");
m.body()._return(JExpr.lit(5));
File file = new File("./target/classes");
file.mkdirs();
cm.build(file);
I can get this output:
package foo;
public class Bar {
in...
Using the slash character in Git branch name
... Thanks for the in depth reply.. Interstingly I tried git branch foo/bar (which worked); then git branch -d foo/bar, but I see that the foo/ directory (now empty) still exists! EDIT: and it is replaced as soon as I do "git branch foo". All is well.
– user58777
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How to properly check if std::function is empty in C++11?
...td::function, std::plus
int main () {
std::function<int(int,int)> foo,bar;
foo = std::plus<int>();
foo.swap(bar);
std::cout << "foo is " << (foo ? "callable" : "not callable") << ".\n";
std::cout << "bar is " << (bar ? "callable" : "not callable...
Remove element of a regular array
I have an array of Foo objects. How do I remove the second element of the array?
15 Answers
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How can I use inverse or negative wildcards when pattern matching in a unix/linux shell?
... like this (replace ls with cp and add the target directory, of course)
~/foobar> shopt extglob
extglob off
~/foobar> ls
abar afoo bbar bfoo
~/foobar> ls !(b*)
-bash: !: event not found
~/foobar> shopt -s extglob # Enables extglob
~/foobar> ls !(b*)
abar afoo
~/foobar>...
Forward declaration of a typedef in C++
...int a;
int b;
} bah;
// b.h
struct _bah;
typedef _bah bah;
class foo {
foo(bah * b);
foo(bah b);
bah * mBah;
};
// b.cpp
#include "b.h"
#include "a.h"
foo::foo(bah * b) {
mBah = b;
}
foo::foo(bah b) {
mBah = &b;
}
...
What are “named tuples” in Python?
...mport NamedTuple
class ANamedTuple(NamedTuple):
"""a docstring"""
foo: int
bar: str
baz: list
The above is the same as the below, except the above additionally has type annotations and a docstring. The below is available in Python 2+:
>>> from collections import namedtup...
How to disable an input type=text?
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document.getElementById('foo').disabled = true;
or
document.getElementById('foo').readOnly = true;
Note that readOnly should be in camelCase to work correctly in Firefox (magic).
Demo: https://jsfiddle.net/L96svw3c/ -- somewhat explains the dif...