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Mocke Test: Exception Handling

1. Differentiate between throw and throws keywords in java using an appropriate program. 

 2. What is the difference between checked and unchecked exception? What are the different ways of handling checked exceptions in Java?


3. What is the significance of using finally block in exception handling? How it is different from the catch block? Explain the importance of finally with the help of a suitable program.


4.  Write a Program in which prompt the user to enter a String. If the size of String is odd, then throw a User-defined exception InvalidStringException and display "String is Not Accepted". Re-throw the caught exception from catch block to print "Thanks for using this Program".


5. Write a program to define a class named Car with an attribute fuel, and constants mileage and max_fuel. Provide the following methods:  

    public int addFuel(int ltr) throws FuelTankFullException
    public void travel(int km) throws NotSufficientFuelException

such that if the added fuel(ltr) is greater than max_fuel then a user defined exception FuelTankFullException is thrown and when the fuel is not sufficient to travel km distance then NotSufficientFuelException is thrown.

In main class create a Car object. Invoke the addFuel and travel methods. In travel method, handle the NotSufficientFuelException such that it asks the user to add the fuel.

Comments

  1. Unknown19 December 2017 at 23:07

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  2. Unknown4 April 2018 at 22:55

    where is the answer

    ReplyDelete
  3. Anonymous1 December 2019 at 20:39

    Good Post! Thank you so much for sharing the post, it was so good to read and useful to improve
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    ReplyDelete

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