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What are the barriers to understanding pointers and what can be done to overcome them? [closed]
Why are pointers such a leading factor of confusion for many new, and even old, college level students in C or C++? Are there any tools or thought processes that helped you understand how pointers work at the variable, function, and beyond level?
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Is there an alternative to string.Replace that is case-insensitive?
...gComparison comparison)
{
StringBuilder sb = new StringBuilder();
int previousIndex = 0;
int index = str.IndexOf(oldValue, comparison);
while (index != -1)
{
sb.Append(str.Substring(previousIndex, index - previousIndex));
sb.Append(newValue);
index += old...
Why should I use the keyword “final” on a method parameter in Java?
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Stop a Variable’s Reassignment
While these answers are intellectually interesting, I've not read the short simple answer:
Use the keyword final when you want the compiler to prevent a
variable from being re-assigned to a different object.
Whether the variable is a static ...
What does the question mark operator mean in Ruby?
...ever there are several other uses of the ? in Ruby (is a ternary operator, converting a character to its ASCII integer, usage in test, in RegEx'es, etc.) many of which are covered in the other answers here.
– Karl Wilbur
Sep 11 '15 at 20:36
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Why can't we have static method in a (non-static) inner class?
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There's not much point to allowing a static method in a non-static inner class; how would you access it? You cannot access (at least initially) a non-static inner class instance without going through an outer class instance. There is no purel...
How to know the size of the string in bytes?
...ce each Char is UTF16/2-bytes) if you want the same number of bytes as the internal representation of a string. If you actually want the exact amount of memory the entire object takes, rather than just the number of bytes in its internal character array, then you might consider a more general method...
Duplicate AssemblyVersion Attribute
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When converting an older project to .NET Core, most of the information that was in the AssemblyInfo.cs can now be set on the project itself. Open the project properties and select the Package tab to see the new settings.
The ...
jQuery.inArray(), how to use it right?
... bit fancy you can use the bitwise not (~) and logical not(!) operators to convert the result of the inArray function to a boolean value.
if(!!~jQuery.inArray("test", myarray)) {
console.log("is in array");
} else {
console.log("is NOT in array");
}
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How to avoid “if” chains?
...rick, it's highly idiomatic in nearly every programming language, to the point of being undebatably standard practice.
– BlueRaja - Danny Pflughoeft
Jun 27 '14 at 22:12
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Is there a way to style a TextView to uppercase all of its letters?
... :
android:textAllCaps="true"
A simple example:
<android.support.v7.internal.widget.CompatTextView
android:id="@+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:textAllCaps="true"/>
Source:developer.android
Update:
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