Demonstrate exception chaining. : Exception « Development « Java Tutorial






class ChainExcDemo {
  static void demoproc() {
    NullPointerException e = new NullPointerException("top layer");

    e.initCause(new ArithmeticException("cause"));

    throw e;
  }

  public static void main(String args[]) {
    try {
      demoproc();
    } catch (NullPointerException e) {
      System.out.println("Caught: " + e);

      System.out.println("Original cause: " + e.getCause());
    }
  }
}








6.23.Exception
6.23.1.Error Handling
6.23.2.Types of Exceptions
6.23.3.Java's Unchecked RuntimeException Subclasses
6.23.4.Java's Checked Exceptions Defined in java.lang
6.23.5.Throwing an Exception from a Method
6.23.6.Write a catch block that handles java.lang.Exception
6.23.7.Handling Exceptions
6.23.8.Multiple catch Blocks
6.23.9.The finally Block
6.23.10.Exception Objects: stack trace
6.23.11.Defining Your Own Exceptions, Throwing Your Own Exception
6.23.12.Demonstrate exception chaining.
6.23.13.Getting the Stack Trace of an Exception
6.23.14.Put printStackTrace() into a String: redirect the StackTrace to a String with a StringWriter/PrintWriter
6.23.15.Check whether given exception is compatible with the exceptions declared in a throws clause
6.23.16.Convert an exception to a String with full stack trace
6.23.17.Get Deepest Throwable
6.23.18.Get the stack trace of the supplied exception.
6.23.19.Is Checked Exception
6.23.20.Locates a particular type of exception
6.23.21.Make a string representation of the exception
6.23.22.Print all of the thread's information and stack traces
6.23.23.Return stack trace from the passed exception as a string
6.23.24.Returns the root cause of an exception
6.23.25.Create a new Exception, setting the cause if possible.
6.23.26.Returns the output of printStackTrace as a String.
6.23.27.This program creates a custom exception type.
6.23.28.Utility methods for dealing with stack traces