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Differences between “java -cp” and “java -jar”?
What is the difference between running a Java application with java -cp CLASSPATH and java -jar JAR_FILE_PATH ? Is one of them preferred to the other for running a Java application? I mean which one of these ways is more expensive for JVM (according to their machine resources usage)?
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Get properties and values from unknown object
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This should do it:
Type myType = myObject.GetType();
IList<PropertyInfo> props = new List<PropertyInfo>(myType.GetProperties());
foreach (PropertyInfo prop in props)
{
object propValue = prop.GetValue(myObject, null);
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Converting java.util.Properties to HashMap
...java.util.HashMap's constructor receives a Map type param. So, why must it be converted explicitly?
13 Answers
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How to recursively download a folder via FTP on Linux [closed]
...ple:
wget -r ftp://user:pass@server.com/
You can also use -m which is suitable for mirroring. It is currently equivalent to -r -N -l inf.
If you've some special characters in the credential details, you can specify the --user and --password arguments to get it to work. Example with custom login ...
Automatic popping up keyboard on start Activity
I got a relative simple question. I have an activity with a lot of EditText's in them. When I open the activity it automatically focusses to the first EditText and displays the virtual keyboard.
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add column to mysql table if it does not exist
...o record in your database a revision number for the schema. Just a table with a single column and single row, with an integer indicating which revision is current in effect. When you update the schema, increment the number.
Another solution would be to just try the ALTER TABLE ADD COLUMN command....
How are GCC and g++ bootstrapped?
...of GCC was compiled using another C compiler, since there were others when it was written. The very first C compiler ever (ca. 1973, IIRC) was implemented either in PDP-11 assembly, or in the B programming language which preceded it, but in any case the B compiler was written in assembly. Similarly,...
Spring MVC: Complex object as GET @RequestParam
...f how to call this? I am making a basic http GET call to the Rest API and it has no fancy forms.
– bschandramohan
Jul 9 '13 at 16:13
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How can I add a help method to a shell script?
...etopts ':hs:' option; do
case "$option" in
h) echo "$usage"
exit
;;
s) seed=$OPTARG
;;
:) printf "missing argument for -%s\n" "$OPTARG" >&2
echo "$usage" >&2
exit 1
;;
\?) printf "illegal option: -%s\n" "$OPTARG" >&2
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Why is parenthesis in print voluntary in Python 2.7?
...int is actually a special statement and not a function*.
This is also why it can't be used like: lambda x: print x
Note that (expr) does not create a Tuple (it results in expr), but , does. This likely results in the confusion between print (x) and print (x, y) in Python 2.7
(1) # 1 -- no tuple...