Java Program to Multiply Number by 4 using Bitwise Operators

This is a Java Program to Multiply given Number by 4 using Bitwise Operators.

Enter the number you wish to multiply as input. After that we use left shift by 2 to multiply given input by four and hence get the output.

Here is the source code of the Java Program to Multiply given Number by 4 using Bitwise Operators. The Java program is successfully compiled and run on a Windows system. The program output is also shown below.

```
import java.util.Scanner;
```
```
public class Multiply_Bitwise 
```
```
{
```

    public static void main(String[] args)

```
    {
```
```
        int n;
```

        Scanner s = new Scanner(System.in);

        System.out.print("Enter the number:");

```
        n = s.nextInt();
```
```
        int mul = n << 2;
```

        System.out.println("Answer:"+mul);

```
    }
```
```
}
```

Output:

$ javac Multiply_Bitwise.java
$ java Multiply_Bitwise
 
Enter the number:5
Answer:20

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