How to measure distance on google maps ?

Use the page here , you just click on points and the distance will appear either in miles or in kilometers. You can also mark multiple points and calculate a real length of a path.

Popular posts from this blog

Escape HTML and XML in Java

HTML and XML escape format is widely used in web and XML transactions. There is a great utility for this purpose in Java world : Lang package in apache commons project Download commons-lang and put the commons-lang-xxx.jar file in your classpath or in your project. The StringEscapeUtils class is your key class here. Use static escapeXml() , escapeHtml() , unescapeXml() , unescapeHtml() methods. String escaped = StringEscapeUtils.escapeXml(" "); Great & Lifesaving , thanks apache again !
Read more

Tomcat JDBC Connection Pooling

Connection pooling is a cool mechanism because it allows to us reuse db connections. In a DB server a database connection is an expensive thing because it consumes system resources. Also connection creation and closing are time consuming operations. Connection Pooling helps us to reduce number of concurrent connections and to escape from connection open/close by keeping connections alive. Apache Tomcat is a great and ligthweight Java Application server for both development and production. Tomcat has an JDBC Connection Pooling mechanism. This feaute is configured in /META-INF/context.xml. Here is a sample: <?xml version="1.0" encoding="UTF-8"?> <Context docBase="/MyApp" path="/MyApp" reloadable="true"> <Resource name="jdbc/mydbresource" auth="Container" type="javax.sql.DataSource" factory="org.apache.tomcat.dbcp.dbcp.BasicDataSourceFactory" username="myusername" password=...
Read more

Connect via SSH without a password from MacOS to Linux with an SSHKEY

Don't panic , it is really easy. Your Steps will be: 1. Create a key on your Mac 2. Define your key on remote Linux 3. Connect via ssh. 1.  Create the key on your Mac Open the terminal :) First make a directory named .ssh on your home directory ( mkdir .ssh ) If it exist , no problem. Go to the newly created .ssh directory with command cd .ssh Then, you need to create a ssh key on your MAC. There will be 2 files for key. If you dont want any passwords , just press enter when passphrase asked. Filename will be default id_rsa if you just hit enter. But if it already exists , you may want to choose another name. Hakos-MacBook-Pro:.ssh hakan$ ssh-keygen -t rsa -C "your@email.com" Generating public/private rsa key pair. Enter file in which to save the key (/Users/hako/.ssh/id_rsa): Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /Users/hako/.ssh/id_rsa. Your public key has been saved in /...
Read more