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package R does not exist
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For anyone who ran into this,
I refactored by renaming the namespace folders. I just forgot to also edit AndroidManifest and that's why I got this error.
Make sure you check this as well.
sha...
Tool to read and display Java .class versions
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Use the javap tool that comes with the JDK. The -verbose option will print the version number of the class file.
> javap -verbose MyClass
Compiled from "MyClass.java"
public class MyClass
SourceFile: "MyClass.java"
minor version: 0
major version: 46
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To only sho...
Creating an instance using the class name and calling constructor
...assName);
Constructor<?> ctor = clazz.getConstructor(String.class);
Object object = ctor.newInstance(new Object[] { ctorArgument });
That will only work for a single string parameter of course, but you can modify it pretty easily.
Note that the class name has to be a fully-qualified one, i....
How to insert a SQLite record with a datetime set to 'now' in Android application?
Say, we have a table created as:
10 Answers
10
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Increase heap size in Java
I am working on a Windows 2003 server (64-bit) with 8 GB RAM. How can I increase the heap memory maximum? I am using the -Xmx1500m flag to increase the heap size to 1500 Mb. Can I increase the heap memory to 75% of physical memory (6 GB Heap)?
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Insert multiple rows WITHOUT repeating the “INSERT INTO …” part of the statement?
I know I've done this before years ago, but I can't remember the syntax, and I can't find it anywhere due to pulling up tons of help docs and articles about "bulk imports".
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How to find index of all occurrences of element in array?
...rns them as an array (or returns an empty array if the value isn't found), but you could do something else with the individual index values inside the loop.
UPDATE: As per VisioN's comment, a simple for loop would get the same job done more efficiently, and it is easier to understand and therefore e...
bundle install fails with SSL certificate verification error
When I run bundle install for my Rails 3 project on Centos 5.5 it fails with an error:
28 Answers
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How do you convert a time.struct_time object into a datetime object?
How do you convert a Python time.struct_time object into a datetime.datetime object?
3 Answers
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How to extract URL parameters from a URL with Ruby or Rails?
...u want to turn any given URL string into a HASH?
You can try http://www.ruby-doc.org/stdlib/libdoc/cgi/rdoc/classes/CGI.html#M000075
require 'cgi'
CGI::parse('param1=value1&param2=value2&param3=value3')
returns
{"param1"=>["value1"], "param2"=>["value2"], "param3"=>["value3"]}...