How can I set size of a button?

The following bit of code does what you ask for. Just make sure that you assign enough space so that the text on the button becomes visible The X and Y (two first parameters of the GridLayout constructor) specify the number of rows and columns in the grid (respectively). You may leave one of them … Read more

how to find 2d array size in c++

How do I find the size of a 2D array in C++? Is there any predefined function like sizeof to determine the size of the array? Also, can anyone tell me how to detect an error in the getvalue method for arrays while trying to get a value which is not set?

How to increase the size of an array in Java?

Instead of using an array, use an implementation of java.util.List such as ArrayList. An ArrayList has an array backend which holds values in a list, but the array size is automatically handles by the list. You can also convert the list into an array using list.toArray(new String[list.size()]) and so forth for other element types.

How to split large text file in windows?

If you have installed Git for Windows, you should have Git Bash installed, since that comes with Git. Use the split command in Git Bash to split a file: into files of size 500MB each: split myLargeFile.txt -b 500m into files with 10000 lines each: split myLargeFile.txt -l 10000 Tips: If you don’t have Git/Git Bash, download at https://git-scm.com/download If you … Read more

How to change legend size with matplotlib.pyplot

You can set an individual font size for the legend by adjusting the prop keyword. This takes a dictionary of keywords corresponding to matplotlib.font_manager.FontProperties properties. See the documentation for legend: Keyword arguments: It is also possible, as of version 1.2.1, to use the keyword fontsize.

Which is faster C++ String length() or size()?

Both have the same complexity: Constant. From the N4431 working draft, §21.4.4 size_type size() const noexcept; Returns: A count of the number of char-like objects currently in the string. Complexity: Constant time. And size_type length() const noexcept; Returns: size(). […] iterates through all the characters and counts the length […] That’s C strings you’re thinking … Read more

std::string length() and size() member functions

As per the documentation, these are just synonyms. size() is there to be consistent with other STL containers (like vector, map, etc.) and length() is to be consistent with most peoples’ intuitive notion of character strings. People usually talk about a word, sentence or paragraph’s length, not its size, so length() is there to make … Read more