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Can we instantiate an abstract class?
...
}
}
Poly.java:
class Poly extends My {
public static void main(String a[]) {
My m = new My() {};
m.myMethod();
}
}
Now, compile both your source files:
javac My.java Poly.java
Now in the directory where you compiled the source code, you will see the following cla...
How do I remove/delete a folder that is not empty?
...
This doesn't work for me: Traceback (most recent call last): File "foo.py", line 31, in <module> shutil.rmtree(thistestdir) File "/usr/lib/python2.6/shutil.py", line 225, in rmtree onerror(os.rmdir, path, sys.exc_info()) File "/usr/lib/python2.6/shutil.py...
Should I avoid the use of set(Preferred|Maximum|Minimum)Size methods in Java Swing?
...vate JScrollPane sp = new JScrollPane(panel);
public static void main(String args[]) {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
DesignTest id = new DesignTest();
id.create("My Project");
}
...
What are the best practices for using a GUID as a primary key, specifically regarding performance?
... every row in your table. This can be anything, really - an INT, a GUID, a string - pick what makes most sense for your scenario.
the clustering key (the column or columns that define the "clustered index" on the table) - this is a physical storage-related thing, and here, a small, stable, ever-incr...
How to use sed/grep to extract text between two words?
I am trying to output a string that contains everything between two words of a string:
12 Answers
...
How to set warning level in CMake?
...orce to always compile with W4
if(CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
string(REGEX REPLACE "/W[0-4]" "/W4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
else()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
endif()
elseif(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
# Update if necessa...
How do I restrict a float value to only two places after the decimal point in C?
... just want to round the number for output purposes, then the "%.2f" format string is indeed the correct answer. However, if you actually want to round the floating point value for further computation, something like the following works:
#include <math.h>
float val = 37.777779;
float rounde...
SQL Server 2008 can't login with newly created user
...
SQL Server was not configured to allow mixed authentication.
Here are steps to fix:
Right-click on SQL Server instance at root of Object Explorer, click on Properties
Select Security from the left pane.
Select the SQL Server and Windows Authentication m...
RESTful Alternatives to DELETE Request Body
...uld just have a default reason if the reason is not specified in the query string. The resource will still be resource/:id. You can make it discoverable with Link headers on the resource for each reason (with a rel tag on each to identify the reason).
Use a separate endpoint per reason: Using a url ...
How to use glob() to find files recursively?
...enerator alows you to process each file as it is found, instead of finding all the files and then processing them.
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