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JavaProgramming/BitManipulation/PowerOf2OrNot.java at main · karterhhgg/JavaProgramming · GitHub
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BitManipulation
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PowerOf2OrNot.java
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BitManipulation
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PowerOf2OrNot.java
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// Write a program to find if a number is a power of 2 or not.
package
BitManipulation
;
import
java
.
util
.*;
public
class
PowerOf2OrNot
{
public
static
void
main
(
String
[]
args
) {
Scanner
sc
=
new
Scanner
(
System
.
in
);
int
n
=
sc
.
nextInt
();
int
val
= (
n
& (
n
-
1
));
if
(
val
==
0
){
System
.
out
.
println
(
"given number is power of 2."
);
}
else
{
System
.
out
.
println
(
"given number is not power of two"
);
}
}
}
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