Phone.java

public abstract class Phone {
	private String versionNumber;
	private int batteryPercentage;
	private String carrier;
	private String ringTone;

	public Phone(String versionNumber, int batteryPercentage, String carrier, String ringTone) {
		this.versionNumber = versionNumber;
		this.batteryPercentage = batteryPercentage;
		this.carrier = carrier;
		this.ringTone = ringTone;
	}

	public abstract void displayInfo();

	public String getVersionNumber() {
		return versionNumber;
	}

	public void setVersionNumber(String versionNumber) {
		this.versionNumber = versionNumber;
	}

	public int getBatteryPercentage() {
		return batteryPercentage;
	}

	public void setBatteryPercentage(int batteryPercentage) {
		this.batteryPercentage = batteryPercentage;
	}

	public String getCarrier() {
		return carrier;
	}

	public void setCarrier(String carrier) {
		this.carrier = carrier;
	}

	public String getRingTone() {
		return ringTone;
	}

	public void setRingTone(String ringTone) {
		this.ringTone = ringTone;
	}

	@Override
	public String toString() {
		return "Phone [getVersionNumber()=" + getVersionNumber() + ", getBatteryPercentage()=" + getBatteryPercentage()
				+ ", getCarrier()=" + getCarrier() + ", getRingTone()=" + getRingTone() + "]";
	}

}