DisplayCanvas.java 文件源码

public void dispose() {
    ComponentListener[] listeners = getComponentListeners();
    for (int i=0; i<listeners.length; i++) {
        removeComponentListener(listeners[i]);
    }
    MouseListener[] mlisteners = getMouseListeners();
    for (int i=0; i<mlisteners.length; i++) {
        removeMouseListener(mlisteners[i]);
    }
    KeyListener[] klisteners = getKeyListeners();
    for (int i=0; i<klisteners.length; i++) {
        removeKeyListener(klisteners[i]);
    }
}