Questions C# Programming problem

[JohnSnow]

මේකට එන පිළිතුර මොකක්ද පැහැදිලි කිරීමකුත් අවශ්‍යයි

Suppose n is a variable of the type Byte and we wish to put OFF its fourth bit (from right) without disturbing any other bits. Which of the following statements will do this correctly?

[A]. n = n && HF7 [A]. n = n & 16 [C]. n = n & 0xF7 [D]. n = n & HexF7 [E]. n = n & 8

 

[deepbug]

Correct answer is C. (assuming @ is a printing mistake)

n        = abcd efgh
0xF7     = 1111 0111
           ---------
n & 0xF7 = abcd 0fgh

By the observation that,
    x AND 1 = x
    x AND 0 = 0

 

[JohnSnow]

Correct answer is C. (assuming @ is a printing mistake)

n        = abcd efgh
0xF7     = 1111 0111
           ---------
n & 0xF7 = abcd 0fgh

By the observation that,
    x AND 1 = x
    x AND 0 = 0

n = abcd efgh

meka terun ne bn

 

[ThisaraMalintha]

n = abcd efgh

meka terun ne bn

abcd efgh placeholders widihata use karala thiyenne bro

 

[IreshMM]

n = abcd efgh

meka terun ne bn

Letters represent the individual bits of the byte. Byte is 8 bits, hence 8 letters.

 

[JohnSnow]

Letters represent the individual bits of the byte. Byte is 8 bits, hence 8 letters.

got it mchan thanks!

abcd efgh placeholders widihata use karala thiyenne bro

elakir bro

without disturbing any other bits kyla tyna nisa oya answer eka harida?

 

[ThisaraMalintha]

got it mchan thanks!

elakir bro

without disturbing any other bits kyla tyna nisa oya answer eka harida?

ow bro and,xor,or bitwise operations ne. e wagema eka bit ekakata wena modification eka anith bits walata propagate wenne na.

 

[hodakolla]

BUMPER