OnJava8-Examples/annotations/ifx/Multiplier.java at master · CSapprenticeWT/OnJava8-Examples · GitHub

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// annotations/ifx/Multiplier.java

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

// javac-based annotation processing

// {java annotations.ifx.Multiplier}

package annotations.ifx;

@ExtractInterface(interfaceName="IMultiplier")

public class Multiplier {

public boolean flag = false;

private int n = 0;

public int multiply(int x, int y) {

int total = 0;

for(int i = 0; i < x; i++)

total = add(total, y);

return total;

}

public int fortySeven() { return 47; }

private int add(int x, int y) {

return x + y;

}

public double timesTen(double arg) {

return arg * 10;

}

public static void main(String[] args) {

Multiplier m = new Multiplier();

System.out.println(

"11 * 16 = " + m.multiply(11, 16));

}

/* Output:

11 * 16 = 176