Dominique.java

package tiy.week6;

/**
 * Created by Dominique on 5/2/2016.
 */
public class Dominique implements Programmer {
    @Override
    public void sayHello() {
        System.out.println("Hello, from Dominique");
    }

    @Override
    public String getId() {
        return "dominique@theironyard.com";
    }

    @Override
    public boolean isJavaProgrammer() {
        return true;
    }
}

DominiqueRunner.java

package tiy.week6;

/**
 * Created by Dominique on 5/2/2016.
 */
public class DominiqueRunner extends RunnerBase {

    public DominiqueRunner(Programmer programmer) {
        super(programmer);
    }

    public static void main(String[] args) {
        Dominique dominique = new Dominique();
        DominiqueRunner runner = new DominiqueRunner(dominique);
        runner.runProgrammer();
    }
}

DontaRunner.java

package tiy.week6;

/**
 * Created by Donta White on 5/2/2016.
 */
public class DontaRunner extends RunnerBase {
    public DontaRunner(Programmer programmer) {
        super(programmer);
    }

    public static void main(String[] args) {
       DontaWhite donta = new DontaWhite();
        DominiqueRunner runner = new DominiqueRunner(donta);
        runner.runProgrammer();
    }


}

DontaWhite.java

package tiy.week6;

/**
 * Created by Donta White on 5/2/2016.
 */
public class DontaWhite implements Programmer {
    @Override
    public void sayHello() {
        System.out.println("Hello, from Dominique");
    }

    @Override
    public String getId() {
        return "dominique@theironyard.com";
    }

    @Override
    public boolean isJavaProgrammer() {
        return true;
    }


}

Programmer.java

package tiy.week6;

/**
 * Created by Dominique on 5/2/2016.
 */
public interface Programmer {

    public void sayHello();
    public String getId();
    public boolean isJavaProgrammer();

}

RunnerBase.java

package tiy.week6;

/**
 * Created by Dominique on 5/2/2016.
 */
public class RunnerBase {

    Programmer programmer;

    public RunnerBase() {
    }

    public RunnerBase(Programmer programmer) {
        this.programmer = programmer;
    }

    public void runProgrammer() {
        programmer.sayHello();
        if (programmer.isJavaProgrammer()) {
            System.out.println(programmer.getId() + " is a Java Programmer");
        } else {
            System.out.println(programmer.getId() + " is not a Java Programmer");
        }
    }
}

Steve.java

package tiy.week6;

/**
 * Created by Dominique on 5/2/2016.
 */
public class Steve implements Programmer {
    @Override
    public void sayHello() {
        System.out.println("Hello, from Steve");
    }

    @Override
    public String getId() {
        return "steve@google.com";
    }

    @Override
    public boolean isJavaProgrammer() {
        return true;
    }
}

SteveRunner.java

package tiy.week6;

/**
 * Created by Dominique on 5/2/2016.
 */
public class SteveRunner extends RunnerBase {

    public SteveRunner(Programmer programmer) {
        super(programmer);
    }

    public static void main(String[] args) {
        Steve steve = new Steve();
        SteveRunner runner = new SteveRunner(steve);
        runner.runProgrammer();
    }
}

StringExercise.java

package tiy.week6;

/**
 * Created by Dominique on 5/2/2016.
 */
public class StringExercise {
    public String reserveString(String toReverse) {
        if (toReverse == null) {
            return toReverse;
        }

        char[] toReverseArray = toReverse.toCharArray();
//        char[] reversedArray = new char[toReverseArray.length];
        int charIndex = toReverseArray.length -1;
        StringBuilder reverseBuilder = new StringBuilder();
        for (char currentChar : toReverseArray) {
            reverseBuilder.append(toReverseArray[charIndex]);
            charIndex--;
        }

        return reverseBuilder.toString();
    }
}