Java Exception Class Hierarchy Diagram

The class Exception and its subclasses are defined in such a way that an application may generate a condition which might be caught. The Exception class extends the Throwable class. All errors and exception classes are the subclasses of java.lang.Throwable which further extends the java.lang.Object class.

Ads

Tutorials

In this section we will discuss about the hierarchy of java.lang.Exception class.

Java Exception Class Hierarchy

Constructor Detail

Constructor	Description
Exception()	This is a default constructor which creates a new Exception object. It contains a pre defined message. Syntax : public Exception()
Exception(String message)	This constructor creates a new Exception object with the specified message. Syntax : public Exception(String message)
Exception(String message, Throwable cause)	This constructor creates a new Exception object with the specified message and cause. Syntax : public Exception(String message, Throwable cause)
Exception(Throwable cause)	This constructor creates a new Exception object with the specified cause. Syntax : public Exception(Throwable cause)

Method Detail

Methods in this class are inherited from its parent class i.e. java.lang.Throwable and java.lang.Object. Some commonly used methods are as follows :

getCause() : This method is used to find out the cause of Throwable or null if the cause is not known or having no existence.

Syntax : public Throwable getCause()
getMessage() : This method is used to find out the detail string message of Throwable.

Syntax : public String getMessage()
printStackTrace() : This method is used to print the standard error stream.

Syntax : public void printStackTrace()
toString() : This method is used to find out the error message in a specified format.
- Name of class
- ': " colon followed by a white space.
- result of invoking objects method.
Syntax : public String toString()

Java Exception Class Hierarchy Diagram

Spring Framework Training

R Programming Training

Java Exception Class Hierarchy Diagram