Here are the answers for the midterm practice test:

Reading code:

If a=2 and b = 6:

2 loop
stop
stop
4 loop
stop
again 4
yes
again 5
stop
8 loop
stop
11
more
 

If a = 4 and b = 7:

4 loop
stop
again 4
again 4
yes
again 5
stop
8 loop
stop
11
more


Reading code with methods:

if a = 1 and b = 7:

3724
1989
7938
5823
3824

if a = 1 and b = 6:

3624
1934
2933
5823
3824

Application Program solution:

import java.io.*;

public class Junk
{
public static void main( String args[] ) throws IOException
{



DataInputStream input;
input = new DataInputStream(System.in);

int score, high, avgEven, count80, ecount, esum;
score = high = avgEven = count80 = ecount = esum = 0;  // fast way to init
String name= "";

System.out.println("Enter score");   // sentinel value
score = Integer.parseInt(input.readLine());


while (score != 0)
{

if (score%2 == 0)  // number is even
{
System.out.println("score is even");
ecount++;
esum = esum + score;
}

if (score%2 !=0) // could have used else
   System.out.println("score is odd");

if (score > 79)
{
   if (score < 90)
       count80++;
}

if (score > high)
{
System.out.println("highest so far");
System.out.println("What is your name?");
name = input.readLine();
high = score;
}

System.out.println("Enter score");       // sentinel value
score = Integer.parseInt(input.readLine());

}  // end while

System.out.println("average of all evens is " + esum/ecount);
System.out.println(name + " had the highest score");
System.out.println("There were " + count80 + " scores in the 80s");

}
}