What is the output o

Question

What is the output of this program?

class Output {
public static void main(String args[]) {
Integer i = new Integer(257);
byte x = i.byteValue();
System.out.print(x);
}
}

Options:

A . 0

B . 1

C . 256

D . 257

Answer: Option B

i.byteValue() method returns the value of wrapper i as a byte value. i is 257, range

of byte is 256 therefore i value exceeds byte range by 1 hence 1 is returned and

stored in x.

Output:
$ javac Output.java
$ java Output
1

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