binary representation

[Sharda R Govindu]

Hi all,
I'm trying to solve this question from Dan's topic exam.

class B {
public static void main(String args[]) {
System.out.print(Integer.toHexString(Integer.MIN_VALUE)+",");
System.out.print(Integer.toHexString(Integer.MAX_VALUE));
}
}
What is the result of attempting to compile and run the program?
**************************
Is there a shortcut way to know the bit format of Integer.MIN_VALUE instead of determining it by , repeated division of smallest integer value by 2.
also, what is the bit representation of Integer.MIN_VALUE?
Thanks in advance

Sharda.

[Larry Jones]

An integer has thirty-two bits. It uses two's compliment notation where the leftmost bit is the signed bit. The smallest number an integer can represent is a "1" in the sign bit and the rest zeros:
10000000000000000000000000000000
The largest number an integer can represent:
01111111111111111111111111111111
So I guess the shortcut is knowing the number of bits the number type can hold. For example, I know a byte has eight bits, so I know Byte.MIN_VALUE is:
10000000
And Byte.MAX_VALUE is:
01111111

Dan C. has a good tutorial on this and also changing them to Hex:
Dan's Tutorial

[Sharda R Govindu]

Thankyou Larry, That helps!!