Shiva Mohan

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Posts: 486

Keith Lynn

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Posts: 2410

posted 12 years ago

First, look at the bit representation of 900,000.

11011011101110100000

Since a short only contains 16 bits, we are only concerned with the last 16 bits.

1011101110100000

Since the first bit is 1, this is a negative number.

To determine what negative number it is, we flip each of the bits and add 1.

When we flip the bits we get

0100010001011111

When we add 1 we get

0100010001100000

This represents the number 17504.

So when you cast 900000 to a short, you get -17504.

11011011101110100000

Since a short only contains 16 bits, we are only concerned with the last 16 bits.

1011101110100000

Since the first bit is 1, this is a negative number.

To determine what negative number it is, we flip each of the bits and add 1.

When we flip the bits we get

0100010001011111

When we add 1 we get

0100010001100000

This represents the number 17504.

So when you cast 900000 to a short, you get -17504.

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