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How to change Hash values?
...my_hash[k] = v.upcase }
or, if you'd prefer to do it non-destructively, and return a new hash instead of modifying my_hash:
a_new_hash = my_hash.inject({}) { |h, (k, v)| h[k] = v.upcase; h }
This last version has the added benefit that you could transform the keys too.
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Is it possible to view bytecode of Class file? [duplicate]
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Yes. You can use the javap command that's included with the JDK to see the byte code of a class. For example:
javap -c com.mypackage.MyClass
There are several libraries and tools that help you to work with Java bytecode, for example ASM and Jasmin.
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How to specify a port number in SQL Server connection string?
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For JDBC the proper format is slightly different and as follows:
jdbc:microsoft:sqlserver://mycomputer.test.xxx.com:49843
Note the colon instead of the comma.
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makefile:4: *** missing separator. Stop
...relationship with tabs. All actions of every rule are identified by tabs. And, no, four spaces don't make a tab. Only a tab makes a tab.
To check, I use the command cat -e -t -v makefile_name.
It shows the presence of tabs with ^I and line endings with $. Both are vital to ensure that dependencie...
Access event to call preventdefault from custom function originating from onclick attribute of tag
...e. older versions of IE will still require detection inside of your event handler function to look at window.event).
A quick example.
function sayHi(e) {
e.preventDefault();
alert("hi");
}
<a href="http://google.co.uk" onclick="sayHi(event);">Click to say Hi</a>
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How to open the default webbrowser using java
...one point me in the right direction on how to open the default web browser and set the page to "www.example.com" thanks
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How to disable UITextField editing but still accept touch?
... as inputView . Its all good, except that I can edit by copy, paste, cut and select text, and I don't want it. Only the Picker should modify text field.
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Member initialization while using delegated constructor
I've started trying out the C++11 standard and i found this question which describes how to call your ctor from another ctor in the same class to avoid having a init method or the like. Now i'm trying the same thing with code that looks like this:
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Why should I care that Java doesn't have reified generics?
...s came up as a question I asked in an interview recently as something the candidate wished to see added to the Java language. It's commonly-identified as a pain that Java doesn't have reified generics but, when pushed, the candidate couldn't actually tell me the sort of things that he could have a...
SQL-Server: Is there a SQL script that I can use to determine the progress of a SQL Server backup or
...t Studio, I get a visual indication of how far the process has progressed, and thus how much longer I still need to wait for it to finish. If I kick off the backup or restore with a script, is there a way to monitor the progress, or do I just sit back and wait for it to finish (hoping that nothing h...