2010 February | The Developer's Info

Eclipse Galileo SR2 is available

By Oleg Mazurashu,on February 27th,2010%

There is a great news for developers who use Eclipse –version Galileo SR2 is available for download from eclipse.org.

If you don’t want to download the full packages,you can start an upgrade – that’s what I did just a few minutes ago (Help -> Check for Update).

Getting separator symbol in Java

By Oleg Mazurashu,on February 25th,2010%

This snippet of code allows to get symbol which represents separator in your file-system:

System.getProperty(“file.separator”);

Writing files in Java

By Oleg Mazurashu,on February 25th,2010%

I am going to show example which shows how to write a file in Java. If you want to write some file you should start with FileOutputStream. This class is a concrete subclass of OutputStream. Example:

package tutorial;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;/** * This class shows how to write a . . . →Read More:Writing files in Java

Reading files in Java

By Oleg Mazurashu,on February 25th,2010%

I am going to show example which shows how to read a file in Java. If you want to read some file you should start with FileInputStream. This class is a concrete subclass of InputStream. It provides an input stream connected to a particular file. Example:

package tutorial;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import . . . →Read More:Reading files in Java

Getting system root directory in Java

By Oleg Mazurashu,on February 25th,2010%

If you are working with file-system in Java,you should understand that your program can run in other types of OS:(Windows,Unix,Linux). These OS has own file-system structure. For example you need to read or write file in Windows,which located at disk C:\,you should write:

File root = new File(“C:\\”);File dir . . . →Read More:Getting system root directory in Java

Getting path to user’s home directory in Java

By Oleg Mazurashu,on February 25th,2010%

There is a way to find out path to user’s home folder. Need to get system property:

System.getProperty(“user.home”);

That’s all.

Getting working directory in Java

By Oleg Mazurashu,on February 25th,2010%

Sometimes need to know path to your working directory. It is very easy. Here I am going to show snippet of code which helps with this:

System.getProperty(“user.dir”);

It returns String. Call it and you will know your current working directory.

Using InputStream in Java

By Oleg Mazurashu,on February 24th,2010%

InputStream is the abstract super class for all input streams. It declares the three basic methods needed to read bytes of data from a stream. It also has methods for closing streams,checking how many bytes of data are available to be read,skipping over input,marking a position in a stream and resetting back . . . →Read More:Using InputStream in Java

Using OutputStream in Java

By Oleg Mazurashu,on February 24th,2010%

OutputStream class declares basic methods which you need to write bytes of data onto a stream.

. . . →Read More:Using OutputStream in Java

Using Scanner for reading data from system console in Java

By Oleg Mazurashu,on February 22nd,2010%

Java has one more way for reading data from system console. Scanner was introduced in Java 1.5.

. . . →Read More:Using Scanner for reading data from system console in Java