Java Programming - Operators and Assignments - Discussion
Discussion Forum : Operators and Assignments - Finding the output (Q.No. 4)
4.
What will be the output of the program?
class BitShift
{
public static void main(String [] args)
{
int x = 0x80000000;
System.out.print(x + " and ");
x = x >>> 31;
System.out.println(x);
}
}
Answer: Option
Explanation:
Option A is correct. The >>> operator moves all bits to the right, zero filling the left bits. The bit transformation looks like this:
Before: 1000 0000 0000 0000 0000 0000 0000 0000
After: 0000 0000 0000 0000 0000 0000 0000 0001
Option C is incorrect because the >>> operator zero fills the left bits, which in this case changes the sign of x, as shown.
Option B is incorrect because the output method print() always displays integers in base 10.
Option D is incorrect because this is the reverse order of the two output numbers.
Discussion:
17 comments Page 1 of 2.
Sangeetha said:
7 years ago
Thanks for your explanation @Fakru.
(1)
Fakru said:
8 years ago
If you convert 0x80000000 (which is in hexadecimal form) to decimal form, it gives 2147483648. But, the range of integer in java is -2147483648 to 2147483647.
Since, the converted decimal value exceeds the range(positive value) of integer, it takes the negative value and the values go in a cycle from positive to negative. As the converted decimal value exceeds the integer range by 1, the 1st value from -2147483648 is taken, which is -2147483648.
Since, the converted decimal value exceeds the range(positive value) of integer, it takes the negative value and the values go in a cycle from positive to negative. As the converted decimal value exceeds the integer range by 1, the 1st value from -2147483648 is taken, which is -2147483648.
(1)
Divya said:
9 years ago
Can anyone please explain it in detail?
Manisha said:
7 years ago
How to convert 0x80000000 in hexadecimal to decimal?
Can you explain the process?
What is the value of x?
Can you explain the process?
What is the value of x?
Abhi said:
8 years ago
How can we say 0x80000000 as hexadecimal value?
LIYAKAT said:
8 years ago
It's really helpful. Thanks.
Nagalakshmi said:
9 years ago
How to convert hexadecimal to decimal such huge number very quickly?
Please give me the short method.
Please give me the short method.
Shubham said:
9 years ago
Can anyone explain clearly how this answer came?
Amar said:
9 years ago
But hexadecimal representation of Number allow only 4 Digits after 0X?
Santhosh said:
1 decade ago
How do you perform shift operation? Can you explain?
How did you get -2147483648 and 1
what is mean by it ?
How did you get -2147483648 and 1
what is mean by it ?
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