Comp 110 Practice Problems for Final Exam



1) Write the following 'while' loop using 'for' loop

int count = 0;
int sum = 0;
while( count < 10 ) {
   sum += count;
   count++;
}



2) What is the output from each code segment?

int sum = 0;
for( int i = 0; i < 5; i++ ) {
   sum = sum + i;
   for( int j = 0; j < 5; j++ )
      sum = sum + j;
   }
System.out.println(sum);


int sum = 0;
for( int i = 0; i < 5; i++ ) {
   sum = sum + i;
   for( int j = i; j < 5; j++ )
      sum = sum + j;
   }
System.out.println(sum);


3) Display the first n numbers in the Fibonacci sequence.
The sequence starts with the following numbers:

1,1,2,3,5,8,12,21

After the initial two 1s, each number in the sequence 
is the sum of the two prvious numbers.


4) Read a sequence of positive numbers from the keyboard.
Display first the largest and then smallest number entered.
Entering a negative number signals the end of the input.
For example, the input sequence

13
12
66
91
-999

produces the output

12 91