public class Printer implements Printable {

private String name;

public Printer() {

this.someHeavyJob("It needs a lot of time to create Printer instance...");

}

public Printer(String name) {

this.name = name;

this.someHeavyJob("It needs a lot of time to create " + this.name + " instance...");

}

public void setName(String name) {

this.name = name;

}

public String getName() {

return this.name;

}

public void print(String string) {

System.out.println("==== " + this.name + " ====");

System.out.println(string);

}

private void someHeavyJob(String message) {

System.out.println(message);

for (int i = 0; i < 5; i++) {

try {

Thread.sleep(1000);

} catch (InterruptedException e) {

// do something

}

System.out.print(".");

}

System.out.println("\nFinished.");

}

}