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Convert float to double without losing precision
...ouble. Simply casting the float to double gives me weird extra precision. For example:
10 Answers
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How can I list (ls) the 5 last modified files in a directory?
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Try using head or tail. If you want the 5 most-recently modified files:
ls -1t | head -5
The -1 (that's a one) says one file per line and the head says take the first 5 entries.
If you want the last 5 try
ls -1t | tail -5
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How do I tell Spring Boot which main class to use for the executable jar?
My project has more than one class with a main method. How do I tell the Spring Boot Maven plugin which of the classes it should use as the main class?
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Convert SVG image to PNG with PHP
I'm working on a web project that involves a dynamically generated map of the US coloring different states based on a set of data.
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Await on a completed task same as task.Result?
...just to chime in...
There are two reasons why I prefer await over Result (or Wait). The first is that the error handling is different; await does not wrap the exception in an AggregateException. Ideally, asynchronous code should never have to deal with AggregateException at all, unless it specifica...
How to add a Timeout to Console.ReadLine()?
...ised to learn that after 5 years, all of the answers still suffer from one or more of the following problems:
A function other than ReadLine is used, causing loss of functionality. (Delete/backspace/up-key for previous input).
Function behaves badly when invoked multiple times (spawning multiple t...
Free FTP Library [closed]
Can you recommend a free FTP library(class) for C#.
7 Answers
7
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Spring Boot - parent pom when you already have a parent pom
...tarter-parent like a "bom" (c.f. Spring and Jersey other projects that support this feature now), and include it only in the dependency management section with scope=import.That way you get a lot of the benefits of using it (i.e. dependency management) without replacing the settings in your actual p...
Java: How to test methods that call System.exit()?
...e got a few methods that should call System.exit() on certain inputs. Unfortunately, testing these cases causes JUnit to terminate! Putting the method calls in a new Thread doesn't seem to help, since System.exit() terminates the JVM, not just the current thread. Are there any common patterns fo...
How to add one day to a date? [duplicate]
...u have several possibilities:
Solution 1: You can use the Calendar class for that:
Date dt = new Date();
Calendar c = Calendar.getInstance();
c.setTime(dt);
c.add(Calendar.DATE, 1);
dt = c.getTime();
Solution 2: You should seriously consider using the Joda-Time library, because of the various ...