Please help with these quesiotns they are all related thats

Please help with these quesiotns they are all related thats why i didnt post each one!

Explain what\'s wrong with the following code and show how to fix it.

i++;

What will be printed when the following statements are executed (3 questions have relationship)?

For the above Question 2, If they are 3 different questions (no relationship), then what are the results?

4. what is the value for q?

   f = 23.4210

float f, q;

q = f – (long)f;

5. the following code is right?  

byte b;

  short s;

short i;

i = b + s;

Solution

1. The problem in this code is that there are no braces after while statement. So, only one statement i.e the \" System.out.println\" line is considered inside yhe wile loop.So to get the desired output following changes should be done:

int i = 1;

while (i <= 10)
{
System.out.println(\"The square of \" + i + \" is \" + i * i);

i++;
}

2.           i = 6;

     System.out.println(i--);
     System.out.println(++i);
     System.out.println(i);

If the above statements are executed the output will be(if no relationship):

a. is 6 (since its the post decrement operator so the value is not updated in the step in which the operator is used)
b. is 7 (its the pre increment operator so the value displayed will be one incremented to 6)
c. is 6 (it will simply display the value of i i.e. 6)

3.If there is relationship then the output will be:

a. is 6 (since its the post decrement operator so the value is not updated in the step in which the operator is used)
b. is 6 (after the previous step the value of i is 5 and now we have to increment 5 by 1 so the output is 6)
c. is 6 (after the previous step the val of i is 6 so it will simply print 6)

4.f = 23.4210

float f, q;

q = f – (long)f;

The value of \"f\" after converting to long will be 23. So the value of q after subtraction is \".4210\".

5. byte b;
short s;
short i;
i = b + s;

The above code is incorrect as the size of byte is 1 byte and short is 2 bytes. So we cannot store short into a byte value.