@Override
    public String toString() {
        String string = super.toString();
        string += "\nTime: " + oldTime;
        string += "\nFPS: " + getFrameRate();
        return string;
    }
<code>toString</code> returns the string representation of this timer
in the format: <br>
<br>
jme.utility.Timer@1db699b <br>
Time: {LONG} <br>
FPS: {LONG} <br>

@return the string representation of this object.
jme3-lwjgl/src/main/java/com/jme3/system/lwjgl/LwjglTimer.java