In my previous tutorial about Java exceptions, I have covered suppressed exceptions and java exception handling. It is one of the important coding practice to do efficient and foolproof exception handling for your projects. To achieve that, you must have a good knowledge on best practices used for exception. This tutorial will highlight the most significant […]
java.net.ConnectException Example
java.net.ConnectException is thrown when client socket is not able to connect to the server socket. java.net.ConnectException is subclass of java.net.SocketException. In this short tutorial, I am going to write a simple program for client socket that sends message to the server socket. Then server socket process the message and prints it. When there is a […]
EOFException Example in Java
EOFException in Java is thrown when end of file is reached unexpectedly while processing the input. These exceptions are thrown while working the DataInputStream, ObjectInputStream and RandomAccessFile classes. All these classes are using one of the stream classes like FileInputStream for reading the data. When there is no data available in the stream by DataInputStream […]
IOException Example in Java
In this tutorial I am going to explain one of the most common Java exception that is well known by all the Java developers. IOExceptions are thrown when there is any input / output file operation issues while application performing certain tasks accessing the files. IOException is a checked exception and application developer has to handle in […]
Java InvalidPropertiesFormatException Example
When we are using the collection of properties, if the input does not conform to the valid XML document type with the appropriate properties specification at that time an exception is thrown called InvalidPropertiesFormatException, to indicate operation could not be completed. This example explains about that exception. Java InvalidPropertiesFormatException Class Declaration In the above declaration, […]
javax.naming.NameNotFoundException: Name is not bound in this Context Exception
When you are working with the JNDI look up, quite often you would encounter the javax.naming.NameNotFoundException thrown by your application. JNDI names are registered in the registery, if you try to access the name which is not registered or by the wrong format, you would get the javax.naming.NameNotFoundException. Lets look at the below code for […]
java.sql.SQLException: Can’t call commit when autocommit=true Exception
When you work with JDBC application, by default the auto commit is set to true, after the transaction is completed all the transactions are committed to the database. When it is set as true, you can not explicitly call the commit method. If you call the connection.commit() method, then the below exception will be thrown.
How To Resolve java.lang.IllegalAccessException
This example shows when the java.lang.IllegalAccessException is thrown in your application. When an application tries to reflectively create an instance (other than an array), set or get a field, or invoke a method, if that method is not accessible to your application (probably the modifier is private or not accessible one), then your application will […]
FileNotFoundException in Java
If you are working with the File APIs in Java, it is common that you would encounter the FileNotFoundException. This is a subclass of IOException. This Java exception is thrown by the classes FileInputStream, FileOutputStream, and RandomAccessFile. These classes trying to access a file in the system for the purposes of reading or writing into […]
NullPointerException in Java
One of the most common and nightmare for the Java programmers are getting the NullPointerException while running the Java application. This exception is defined at the “java.lang” package and the purpose of the exception is to detect if an object is used without any content. Here you must understand the difference between Reference and Object. […]