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lectricpharaoh · Jul 27th, 2007, 11:48 PM

Yes, you've got it, except Java does not interpret 01000000 as being true. You need an explicit comparison when testing any value that is not boolean. Otherwise, you get a compiler error:

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int flag = 0;
if(flag != 0)
  System.println("flag is nonzero");
if(flag)  // error
  System.println("flag is nonzero");

The second if() is a problem because it evaluates to this:

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if(flag == true)  // error
  System.println("flag is nonzero");

This is comparing an int and a boolean, so you have a type mismatch, and the compiler will choke. But on the boolean operations stuff, it seems you're clear.

Jul 27th, 2007, 11:48 PM	#11
lectricpharaoh Caffeinated Neural Net Join Date: Jun 2005 Location: Dry west coast of Canada Posts: 1,007 Rep Power: 5	Yes, you've got it, except Java does not interpret 01000000 as being true. You need an explicit comparison when testing any value that is not boolean. Otherwise, you get a compiler error: (Toggle Plain Text) int flag = 0; if(flag != 0) System.println("flag is nonzero"); if(flag) // error System.println("flag is nonzero"); int flag = 0; if(flag != 0) System.println("flag is nonzero"); if(flag) // error System.println("flag is nonzero"); The second if() is a problem because it evaluates to this: (Toggle Plain Text) if(flag == true) // error System.println("flag is nonzero"); if(flag == true) // error System.println("flag is nonzero"); This is comparing an int and a boolean, so you have a type mismatch, and the compiler will choke. But on the boolean operations stuff, it seems you're clear. __________________ And once again, Probability proves itself willing to sneak into a back alley and service Drama as would a copper-piece harlot. - Vaarsuvius, Order of the Stick