What is wrong with the following loops (if anything), and how do you fix them?

 

1.

    for (int count=1; count != 6; count++)
   {
          System.out.println(count);
          count++;
   }

2.

    for (int count=0; count != 6; count++)
    {
             System.out.println(count);
             count++;
    }

3.
      int count = 0;
     int i = 1;
     for ( count = 1; i< 10; count++)
     {
          System.out.println("hello");
      }

4.    for (int count=3; count > 4; count++)
    {
             System.out.println(count);
             count++;
    }

Tracing questions:

5. What will this print out? How many times will it loop
     for ( int count = 10; count < 15; count++)
     {
          System.out.println(count);
      }
     System.out.println(“end");

6. What will this print out? How many times will it loop
    int numb = 1;
    int sum = 0;
     for ( int count = 3; count< 6; count++)
     {
          System.out.println(count);
          numb = numb*count;
          sum = sum + numb;
     }
     System.out.println(“at the end, sum is ”+ sum + " and numb is " + numb);

7. What will this print out? How many times will it loop

     for ( int count = 0; count< 6; count++)
     {
          System.out.println(count);
      }
      System.out.println(“end");

8. What will this print out:

int bigSum=0;
int smallSum;
for (int count =3; count <=4; count++)
{
     System.out.println(“Pass #:”+ count);
     smallSum = 0;
     int x;
    for (x = 1; x < count; x++)
     {
            System.out.println(“number to add is “ + x);
            smallSum = smallSum+x;
     }
           System.out.println(“sum of pass “ + count + “ is “ + smallSum);
           bigSum = bigSum+smallSum;
           // can I have System.out.println(x) here?
}
System.out.println(“sum of all passes is “ + bigSum);

9. What will this print out: & What will total equal on the second pass?

public class Tester
{
public static void main()
{  int total = 0;
    for (int count =0; count <=2; count++)
   {
       total = total + 1;
       printStuff();
      // can I print total here?
    }
    System.out.println(total);
    // can I print count here?
}
public static void printStuff()
{
    System.out.println("some stuff to print");
     // can I print total here?
    // can I print count here?
}