Write Java program to demonstrate the example of the left shift (<<) operator

This is a Java program that demonstrates the left shift operator.

The program first declares an integer variable num and initializes it to the value 0xff (which is equivalent to 255 in decimal or 11111111 in binary).
It then uses the left shift operator (<<) to shift the bits of num three places to the left. This means that the value of num is multiplied by 2^3 (which is 8), and any overflows are truncated.
The result of the left shift operation is stored back in num.
Finally, the program outputs the value of num before and after the left shift using the printf method.

Note that the left shift operator can be used to perform multiplication by a power of 2, which is faster than using the multiplication operator (*) when working with large numbers. However, it should be used with caution as it can also lead to unexpected results when used with negative numbers.

Source Code

public class LeftShift_Operator
{
	public static void main(String[] args)
	{
		int num = 0xff;
		System.out.printf("Number before left shift: %04X\n", num);		
		num = (num << 3); //shifting 3 bits left
		System.out.printf("Number after left shift: %04X\n", num);
	}
}

Output

Number before left shift: 00FF
Number after left shift: 07F8

Write Java program to demonstrate the example of the left shift (<<) operator

Source Code

Output

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