1) Write Java code that will declare and create a Scanner object named in to read from an input file named in.txt. Write code so that should a FileNotFoundException occur, the code shall handle the exception by displaying an error message that in.txt could not be opened for reading and immediately terminate the program by calling System.exit(-1).

2)

Assume a PrintWriter object named out which writes to a file named out.txt has been declared and created (the file is opened for writing). Write Java code that will write the even integers in list3 to out.txt. Hint: an integer is even if after dividing it by 2 you get a remainder of 0. For the sample in.txt file, the contents of out.txt will be:

Sample out.txt for given in.txt 4 6 8 0 2 6

30

Consider these classes. Write the Java code to implement both classes. The Workerconstructor shall call the Person constructor to initialize the mName instance variable of a Worker object.

4)

Suppose a class Super declares three instance variables:

(1) a protected int variable named mX;

(2) a private int variable named mY;

(3) a public int variable named mZ.

Class Sub is a direct subclass of Super. We instantiate a Subobject. Which of the Super instance variables are members of the Sub object?

		a- mZ
		b- mX and mZ
		c- mX, mY, and mZ
		d- mY and mZ
		e -mX and mY