Can smb explain this question?

[ssk2659]

Hi! How does the answer happen to be 12?? Thanks in advance!

public static void main(String [] args)
	{
		int i = 5;  
		for(i=0;i<=10;i++)
		{  
		   i=i+1;  
		}  
		System.out.println(i);
 
		
	}

[sagarvk]

In the loop u have set the variable i to 0 and also put a limit upto 10.

[DarrylBurke]

Try to figure it out on paper. When you enter the loop for the first time, the value of i is set to 0, throwing away the earlier value of 5.

That first time through the loop, i get a value of 1 after line 6.

What happens to the value of i in the next time around the loop (the next iteration)? And the next, and the next, until the value of i does not satisfy i<=10 and the loop terminates?

db

[DarrylBurke]

In the loop u have set the variable i to 0 and also put a limit upto 10.

How does that even begin to answer the question?

db

[gimbal2]

How does that even begin to answer the question?

db

I'm still trying to figure out why the Super Mario Brothers would be able to explain this.

[SurfMan]

I'm still trying to figure out why the Super Mario Brothers would be able to explain this.

Cos if u tlk lk dis, thn it will b much bttr 2 undrstnd.

I would like to buy a vowel.

[jim829]

Hi! How does the answer happen to be 12?? Thanks in advance!

Did you think about putting in some print statements and examining the output?

Regards,
Jim

[ssk2659]

Did you think about putting in some print statements and examining the output?

Regards,
Jim

I tried, I'm getting 11. Do we still take into account the int = 5 ?

[ssk2659]

How does one get a value of 1 after line 6??

[jim829]

Do we still take into account the int = 5 ?

No, its irrelevant.

public class Test {
   public static void main(String[] args) {
      int i = 5;
      for (i = 0; i <= 10; System.out.println("i about to increment, i = " + i), i++, System.out.println("i increments to " + i)) {
         System.out.println("i = " + i);
         i = i + 1;
         System.out.println("now i = " + i);
      }
      System.out.println(i);

   }
}

 // now rewrite it like this;
public class Test {
   public static void main(String[] args) {
      int i = 5; // corrected thanks to Gimbal
      for (i = 0; i <= 10;) {
         System.out.println("i = " + i);
         i = i + 1;
         System.out.println("now i = " + i);
         System.out.println("i about to increment, i = " + i);
         i++;
         System.out.println("i increments to " + i);
      }
      System.out.println(i);

Notice anything similar about the two snippets?

You can read about it here -> Chapter*14.*Blocks and Statements

Regards,
Jim

[gimbal2]

Just a quick note: that second snippet doesn't compile since you were a little too eager when removing 'int' keywords ;)

[jim829]

Just a quick note: that second snippet doesn't compile since you were a little too eager when removing 'int' keywords ;)

Thanks, in my test case, I only had one class. I will correct it now.

Regards,
Jim

[ssk2659]

Thank you, Jim! Really helpful! One question: how many years of experience do you have with Java?

[jim829]

Thank you, Jim! Really helpful! One question: how many years of experience do you have with Java?

Hard to say. Probably 10 (that's decimal by BTW) altogether (and I am continuously learning). But I don't do it professionally. My degree is in CS so I enjoy reading related stuff.

Regards,
Jim