Java questions

Q1) What would this code do? FileOutputStream myFile = new FileOutputStream ("c:\input_final.txt", true);

a) Open to check file if you can read from it

b) Open input_final.txt to overwrite the content of the file.

c) Open input_final.txt for appending purposes

d) Open file input and output both and overwrite the content

Q2) How do I print a stack trace for exceptions?

a) By calling Throwable's printStackTrace() method

b) By keeping a list of method calls and then print that list when exception occurs

c) By calling Throwable's getMessage() method

d) By writing my own toPrint() method

Q3) If a class does not provide a toString method, What gets printed if a call is made like this? For example: Animal class does not have a toStrig() method defined. Animal horse; System.out.println (horse); What gets printed?

a) Name of class and memory address of object

b) Address of object only

c) blank line

d) Name of the class