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String output: format or concat in C#?
Let's say that you want to output or concat strings. Which of the following styles do you prefer?
31 Answers
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How to return a value from a Form in C#?
I have a main form (let's call it frmHireQuote) that is a child of a main MDI form (frmMainMDI), that shows another form (frmImportContact) via ShowDialog() when a button is clicked.
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Generate random numbers with a given (numerical) distribution
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PostgreSQL create table if not exists
In a MySQL script you can write:
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What is the use of “ref” for reference-type variables in C#?
I understand that if I pass a value-type ( int , struct , etc.) as a parameter (without the ref keyword), a copy of that variable is passed to the method, but if I use the ref keyword a reference to that variable is passed, not a new one.
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Changing column names of a data frame
I have a data frame called "newprice" (see below) and I want to change the column names in my program in R.
16 Answers
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Running multiple commands with xargs
In the example above, xargs takes echo % as the command argument. But in some cases, I need multiple commands to process the argument instead of one. For example:
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Javascript when to use prototypes
... to use prototype methods in js. Should they always be used? Or are there cases where using them is not preferred and/or incurs a performance penalty?
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Enabling ProGuard in Eclipse for Android
The new documentation on ProGuard for Android says to add a line to the default.properties file in the project home directory. However, on opening this file, I read at the top:
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Calling Python in Java?
I am wondering if it is possible to call python functions from java code using jython, or is it only for calling java code from python?
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