PASCAL: AN INTRODUCTION

SELF TEST: ANSWERS

1. Which of the following Pascal functions which change the value 6.6 to an integer value of 7


	odd
        round
	trunc
	abs

2. Which of the following Pascal operators has the least priority


        =
	+
	/
	NOT

3. Write a simple Pascal procedure called Welcome which prints the text string "Welcome to Pascal"


	procedure Welcome;
	begin
		writeln('Welcome to Pascal')
	end;

4. Write a Pascal procedure called Multiply, which accepts two integers, number1 and number2, and prints the result of multiplying the two integers together.


	procedure Multiply( number1, number2 : integer );
	var  Result : integer;
	begin
		Result := number1 * number2;
		writeln( Result )
	end;

5. What is the output of the following Pascal program


	program Sample( output );
	var  x, y : integer;

	procedure godoit( x, y : integer );
	begin
		x := y;  y := 0;
		writeln( x, y );
	end;

	begin
		x := 1; y := 2;
		godoit( x, y );
		writeln( x, y )
	end.

     Program Output
	2  0
	1  2

6. Write a Pascal function called Multiply2 which returns an integer result. The function accepts two integer parameters, number1 and number2 and returns the value of multiplying the two parameters


	function Multiply2( number1, number2 : integer ) : integer;
	var Result : integer;
	begin
		Result := number1 * number2;
		Multiply2 := Result
	end;