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How to cast List to List
... your type declarations to avoid it. But Java generics is too complicated, and it is not perfect. Sometimes you just don't know if there is a pretty solution to satisfy the compiler, even though you know very well the runtime types and you know what you are trying to do is safe. In that case, just d...
Need a good hex editor for Linux [closed]
I need a good HEX editor for Linux, and by good I mean:
4 Answers
4
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Java: int array initializes with nonzero elements
... with a situation where it is not. Such a behavior occurs first in JDK 7u4 and also occurs in all later updates (I use 64-bit implementation). The following code throws exception:
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Google Chrome Printing Page Breaks
...ke Thanks for answering the problem for me. Not sure why a br doesn't work and a div does, but nonetheless an easy change.
– Jeff Davis
Mar 30 '11 at 21:37
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JUnit test with dynamic number of tests
...ct I have several JUnit tests that e.g. take every file from a directory and run a test on it. If I implement a testEveryFileInDirectory method in the TestCase this shows up as only one test that may fail or succeed. But I am interested in the results on each individual file. How can I write a...
Checking if a variable is defined?
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If you want to set a variable if it doesn't exist and leave it alone if it does, see @danmayer's answer (involving the ||= operator) below.
– jrdioko
Jul 12 '11 at 21:29
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How can I pass a parameter to a Java Thread?
... // store parameter for later user
}
public void run() {
}
}
and invoke it thus:
Runnable r = new MyRunnable(param_value);
new Thread(r).start();
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create two method for same url pattern with different arguments
...}
@RequestMapping(value = "/searchUser", params = "userName")
public ModelAndView searchUserByName(@RequestParam String userName) {
// ...
}
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Why can't I define a default constructor for a struct in .NET?
...t have a constructor with no parameters. According to this post this is mandated by the CLI specification. What happens is that for every value-type a default constructor is created (by the compiler?) which initialized all members to zero (or null ).
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Building big, immutable objects without using constructors having long parameter lists
I have some big (more than 3 fields) objects that can and should be immutable. Every time I run into that case I tend to create constructor abominations with long parameter lists.
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