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Cycling through bits java

[Deleted User] · 2003-03-11 14:03:55

Hey all, Can anyone tell me how to cycle through each bit in a number in Java and see if each bit is 1 or 0? I have this code for(int i = 0; i < 8; i++) { if( (test & temp) != 0){ System.out.print("yes"); } temp = (MASK << i); } it won't work though...am I doing something wrong in my logic? Thanks for any help

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11-03-2003 3:03pm

#1

[Deleted User]
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Join Date: -

Posts: 0

Hey all,

Can anyone tell me how to cycle through each bit in a number in Java and see if each bit is 1 or 0?

I have this code

for(int i = 0; i < 8; i++)
{
if( (test & temp) != 0){
System.out.print("yes");
}

temp = (MASK << i);
}

it won't work though...am I doing something wrong in my logic?
Thanks for any help

0

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#2 11-03-2003 3:08pm
Hobbes

Registered Users Posts: 21,264 ✭✭✭✭

Join Date: February 1998

Posts: 18308

What is test? Why is temp being set after the conditional check?

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#3 11-03-2003 4:19pm
davej

Registered Users Posts: 1,186 ✭✭✭

Join Date: October 2002

Posts: 1014

<edit>if i'm not answering your question, it's because it's not very clear</edit>

RTFM: The static method Integer.toBinaryString(int)

STFW:

String binaryString = Integer.toBinaryString(42);
int endIndex = binaryString.length() % 8;
binaryString = "0000000".substring(0, endIndex) + binaryString;
System.out.println(binaryString);

davej

0