concretescanbufferfactory.java

实现算法与界面设计的完全分离。很好的封装自己的词法分析程序

public class ConcreteScanBufferFactory
implements BufferFactory {

public ConcreteScanBufferFactory() {
System.out.println("缓冲区工厂已经建立!");
}

public ScanBuffer createScanBuffer(int size) {
System.out.println("创建扫描缓冲区!");
return new ScanBuffer(size);
}

public InputBuffer createInputBuffer(int size) {
System.out.println("创建输入缓冲区!");
return new InputBuffer(size);
}
}