Ruby - Ensure exception handler

Introduction

The following code uses ensure clause to do default action in case of exception.

Demo

startdir = Dir.getwd

begin# from  w w w . jav  a  2  s. c  o m
   Dir.chdir( "X:\\" )
   puts( `dir` )
rescue Exception => e
   puts e.class
   puts e
ensure
   Dir.chdir( startdir )
end

Result

Related Topic

• Handling exceptions
• Exception Handler Syntax
• Using passed exceptions
• raise: Reactivate a Handled Error
• Omitting begin and end in exception handler
• Exception handler
• Handler all possible exceptions
• Handling multiple exception types
• retry: Attempt to Execute Code Again After an Error
• rescue else: Execute Code When No Error Occurs
• Using ensure clause to do file closing

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