Java Error

interface

//main program HelloNew.java

package greeting.hello;
import printer.Imachine;

public class HelloNew {
    public static void main (String[] args ) {
               
        Imachine machine = new PrinterTest(true,"test"); //Getting error at this line
        machine.turnOn();
    }
}


//PrinterTest.java
package printer;

public class PrinterTest implements Imachine {

	private boolean isOn;
	private String modelNumber;
	private Machine myMachine;
	
	public PrinterTest(boolean isOn, String modelNumber) {
		Machine myMachine = new Machine(isOn);
		this.modelNumber = modelNumber;
	}

	@Override
	public void turnOn() {
		myMachine.turnOn();
	}

	@Override
	public void turnOff() {
		myMachine.turnOff();
	}

	@Override
	public boolean isOn() {
		return myMachine.isOn();
	}

	@Override
	public boolean isOff() {
		// TODO Auto-generated method stub
		return false;
	}
}

//interface file Imachine.java
package printer;

public interface Imachine {

	public void turnOn();
	public void turnOff();
	public boolean isOn();
    public boolean isOff();
	
}

/*
Exception in thread "main" java.lang.Error: Unresolved compilation problem: 
	PrinterNew cannot be resolved to a type

	at greeting.hello.HelloNew.main(HelloNew.java:11)



*/