via RAID on the Cheap: Windows 7 Software RAID vs. inexpensive “fake RAID” at Kevin’s Blog.

Download dbcp-0.2-rc

Download dbcp-0.2-beta

Step 1:
Download Subversive from here: http://www.eclipse.org/subversive/downloads.php

Choose a suitable version for your eclipse platform.
Here we download Subversive-incubation-0.7.8.I20090904-1300.zip.
Download Subversive Connector from here: http://community.polarion.com/projects/subversive/download/eclipse/2.0/builds/

Choose the latest stable version or other suitable version.
Here we download Subversive-connectors-2.2.1.I20090925-2100.zip.

Step 2:
Unzip these two zip files and fire up eclipse.
Click Help>Install New Software.
Click Add>Local and select the location of Subversive-incubation folder.

Select all the components from the list and follow the installation guide.
After installation, restart eclipse and repeat it for Subversive Connector.

Step 3:
Configure a SVN server in the eclipse.
Click Window>Show View>Other>SVN>SVN Repositories.
Then in the SVN Repositories view, right click and select New>Repository Location.
Define the SVN repository location information and click Finish.

Then a new repository location is created. Right click it and you can check out it as a local project.
When you are ready to share code with others, you may right click your project and Select Team>Share Project.
When you want to synchronize your local resource with your team members, you may use Team>Update.
When you want to commit your code, you may use Team>Commit.

0.2-dev (2009-09-03)

New features:

Initial release

Download dbcp-0.2-dev

0.2-alpha (2009-09-07)

Bugfixes and minor changes:

Compatible with JDK 1.5

Download dbcp-0.2-alpha

We are not going to make any updates for the old API and the new version will be open-source and hosted on Google Code under GNU General Public License v3. We have already created the project home on Google Code, but nothing in it. You may visit here if you like. There is no ETA for the new version release. We will make announcement when it arrives.

Because it is simple to use and you don’t need to install a real Linux on your computer, it is widely used for Windows user. The most common situation to use Cygwin is when you want to use g++ in Windows.

When you install Cygwin, you may see the following figure. You can choose whatever packages you like if you know their functions. You may expand the category to find what you need. If you want to install g++ and other related components such as gdb and make, you may see the post here.

To be mentioned, although Cygwin contains most of commands in Linux, there will be some missing. For example diff is not included by default. You may find it in the Utils category, and it is diffutils: A GNU collection of diff utilities. See the figure below.

Click on the skip once, it will show a current version, then press Next to install it. After installation, you may use diff command in Cygwin.

Bugfixes and minor changes:
Fix the number of conns may be less than the minimum requirement

Download sql-01

Actually, this is part of the right answer.
Now, we look into the source of JDK to see the truth.

The add method in HashSet:

private transient HashMap<E,Object> map;
 
public boolean add(E e) {
    return map.put(e, PRESENT)==null;
}

We know from documentation that “This class(HashSet) implements the Set interface, backed by a hash table (actually a HashMap instance)”. So, it invokes the put method in HashMap. We trace into it and find:

The put method in HashMap:

public V put(K key, V value) {
    if (key == null)
        return putForNullKey(value);
    int hash = hash(key.hashCode());
    int i = indexFor(hash, table.length);
    for (Entry<K,V> e = table[i]; e != null; e = e.next) {
        Object k;
        if (e.hash == hash && ((k = e.key) == key || key.equals(k))) {
            V oldValue = e.value;
            e.value = value;
            e.recordAccess(this);
            return oldValue;
        }
    }
 
    modCount++;
    addEntry(hash, key, value, i);
    return null;
}

Pay attention to the key statement “if (e.hash == hash && ((k = e.key) == key || key.equals(k)))”. From this sentence, we can know the truth:
Two objects are the “same” when they satisfy both of the following conditions:
1. hashCode are the same
2. They refer to the same address or equals method returns true

You may look up the source of TreeSet or other sets to see how they check duplicate elements. They differ from each other.

Step 1:
Download Cygwin setup here: http://www.cygwin.com/setup.exe
Install it according to the following guide:

Recommend to choose a short path and a simple name of the root directory

Choose a location to download the installation file(not necessary be a subfolder of root directory)

Choose a mirror site you like. You may view the mirror site list here: http://cygwin.com/mirrors.html

Expand Devel and select these components (by clicking skip label):
gcc-core: C compiler
gcc-g++: C++ compiler
gdb: The GNU Debugger
make: The GNU version of the make utility

Note: When you choose these components, Cygwin will automatically choose some other dependence for you. Just keep them.

Then it will download these packages and install them. When it completes, click Finish.

Step 2:
Add bin folder in the root directory of Cygwin to the environment variables named path. Either user variable or system variable is fine. In the above example, you should use E:\cygwin\bin.

Step 3:
If you download Eclipse IDE for C/C++ Developers, you may skip Step 3 and directly use it.
Download CDT here: http://www.eclipse.org/cdt/downloads.php
Make sure you select the suitable version for your eclipse.
Installing CDT may differ from its version. Here we use eclipse 3.4.2+CDT 5.0.2.
Unzip CDT zip file into a folder and fire up eclipse.
Click Help>Software Updates and choose Available Software.
Click Add site>Local and select the location of the CDT folder.

You will see the CDT is added to the Available Software list. Choose it and click Install.

Wait until it completes installation and enjoy it after restarting eclipse.