Singleton模式

 java中TradingMode对象Singleton实现

 

public class TradingMode

{

private static TradingMode instance=null;

public int mode;

private TradingMode()

{

mode=MODE_RED;

}

public static TradingMode getInstance()

{

if(instance==null)

{

instance=new TradingMode();

 

}return instance;

}

public void setMode(int mode)

{

...

}

 

}