Head First 设计模式学习笔记（三）装饰者模式续
装饰者模式续。
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public class LowerCaseInputStream extends FilterInputStream {public LowerCaseInputStream(InputStream in) {super(in);}public int read() throws IOException {int c = super.read();return (c == -1 ? c : Character.toLowerCase((char)c));}public int read(byte[] b, int offset, int len) throws IOException {int result = super.read(b, offset, len);for (int i = offset; i < offset+result; i++) {b[i] = (byte)Character.toLowerCase((char)b[i]);}return result;}}?public class InputTest {public static void main(String[] args) throws IOException {int c;try {InputStream in =new LowerCaseInputStream(new BufferedInputStream(new FileInputStream("test.txt")));while((c = in.read()) >= 0) {System.out.print((char)c);}in.close();} catch (IOException e) {e.printStackTrace();}}}??
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