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Why do assignment statements return a value?
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@user437291: If instance construction wasn’t an expression, you couldn’t do anything with the constructed object — you couldn’t assign it to something, you couldn’t pass it into a method, and you couldn’t call any methods on i...
Recursive Lock (Mutex) vs Non-Recursive Lock (Mutex)
...x. Not all systems supporting pthreads also support recursive mutexes, but if they want to be POSIX conform, they have to .
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.war vs .ear file
What is the difference between a .war and .ear file?
9 Answers
9
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Height of status bar in Android [duplicate]
...t() {
int result = 0;
int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android");
if (resourceId > 0) {
result = getResources().getDimensionPixelSize(resourceId);
}
return result;
}
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Getting hold of the outer class object from the inner class object
... refer to any lexically enclosing instance, is described in the JLS as Qualified this.
I don't think there's a way to get the instance from outside the code of the inner class though. Of course, you can always introduce your own property:
public OuterClass getOuter() {
return OuterClass.this;
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In C++, what is a virtual base class?
...oo() ??
Virtual inheritance is there to solve this problem. When you specify virtual when inheriting your classes, you're telling the compiler that you only want a single instance.
class A { public: void Foo() {} };
class B : public virtual A {};
class C : public virtual A {};
class D : public B,...
cscope or ctags why choose one over the other? [closed]
...emented. The second feature means that when you type foo. or foo->, and if foo is a structure, then a pop-up menu with field completion will be shown.
cscope also has the first feature - using set cscopetag - but not the last. However cscope additionally adds the ability to jump to any of the pl...
“loop:” in Java code. What is this, and why does it compile?
... label1:
for (; ; ) {
label2:
for (; ; ) {
if (condition1) {
// break outer loop
break label1;
}
if (condition2) {
// break inner loop
break label2;
}
if (c...
“’” showing on page instead of “ ' ”
...RK - U+2019) character which is being decoded as CP-1252 instead of UTF-8. If you check the encodings table, then you see that this character is in UTF-8 composed of bytes 0xE2, 0x80 and 0x99. If you check the CP-1252 code page layout, then you'll see that each of those bytes stand for the individua...
Add a prefix string to beginning of each line
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# If you want to edit the file in-place
sed -i -e 's/^/prefix/' file
# If you want to create a new file
sed -e 's/^/prefix/' file > file.new
If prefix contains /, you can use any other character not in prefix, or
escape t...