To determine the result of the given operation System.out.println(4 | 3);, we need to understand the bitwise OR operator (|) in Java.
The bitwise OR operator (|) performs a bitwise OR operation on each pair of corresponding bits in the operands. It returns 1 if either of the corresponding bits is 1, and 0 otherwise.
In this case, the operands are 4 and 3. Let's convert these numbers to binary representation:
4 in binary: 100
3 in binary: 011
Performing the bitwise OR operation on each pair of corresponding bits, we get:
100
| 011
111
The result of the operation is 111, which is equivalent to the decimal number 7.
Therefore, the correct answer is D) 7.