初学日记-java单例类

 

public class DataTableSession { private static DataTableSession session = null; private static final Object syncObj = new Object(); private boolean isExecute=false; private DataTableSession(){} public static DataTableSession newInstance() { synchronized (syncObj) { if (session == null) { session = new DataTableSession(); } } return session; } /** * @return the isExecute */ public boolean isIsExecute() { return isExecute; } /** * @param isExecute the isExecute to set */ public synchronized void setIsExecute(boolean isExecute) { this.isExecute = isExecute; }} 

单例类例子