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Modulo operation with negative numbers
In a C program i was trying the below operations(Just to check the behavior )
12 Answers
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Java ArrayList - how can I tell if two lists are equal, order not mattering?
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You could sort both lists using Collections.sort() and then use the equals method. A slighly better solution is to first check if they are the same length before ordering, if they are not, then they are not equal, then sort, then use equals. For example...
How to get a value from a cell of a dataframe?
...ataFrame with only one row, then access the first (only) row as a Series using iloc, and then the value using the column name:
In [3]: sub_df
Out[3]:
A B
2 -0.133653 -0.030854
In [4]: sub_df.iloc[0]
Out[4]:
A -0.133653
B -0.030854
Name: 2, dtype: float64
In [5]: sub_df.iloc[...
Count rows with not empty value
In a Google Spreadsheet: How can I count the rows of a given area that have a value? All hints about this I found up to now lead to formulas that do count the rows which have a not empty content (including formula), but a cell with
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How to create empty text file from a batch file?
Can somebody remember what was the command to create an empty file in MSDOS using BAT file?
13 Answers
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DbEntityValidationException - How can I easily tell what caused the error?
I have a project that uses Entity Framework. While calling SaveChanges on my DbContext , I get the following exception:
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Check if current directory is a Git repository
I am writing a series of scripts for Git management in zsh.
14 Answers
14
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Where to find Java JDK Source Code? [closed]
I would like to see what a method in the Java API does. So I want the JDK Source Code.
Before I re-installed Linux I had the src.zip package with all the official source code in it. I just had to tell Eclipse where this file is and I could see the code. But now I don't have the file anymore...
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Enabling WiFi on Android Emulator
How to enable WiFi on Android emulator? I have tried to find this but everyone is confusing WiFi with 3G.
6 Answers
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Show current assembly instruction in GDB
I'm doing some assembly-level debugging in GDB. Is there a way to get GDB to show me the current assembly instruction in the same way that it shows the current source line? The default output after every command looks like this:
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