小端数据输入流代码,Java代码库,德仔网

代码语言
代码分类
【Java】小端数据输入流
作者:Dezai.CN / 发布于2011/12/1/ 659
<div> public class LEDataInputStream implements DataInput {
 protected final DataInputStream din;
 protected final InputStream is;
 protected final byte[] work;
 public static String readUTF(DataInput in) throws IOException {
 return DataInputStream.readUTF(in);
 }
 public LEDataInputStream(InputStream in) {
 is = in;
 din = new DataInputStream(in);
 work = new byte[8];
 }
 public final void close() throws IOException {
 din.close();
 }
 public final int read(byte ba[], int off, int len) throws IOException {
 return is.read(ba, off, len);
 }
 public final boolean readBoolean() throws IOException {
 return din.readBoolean();
 }
 public final byte readByte() throws IOException {
 return din.readByte();
 }
 public final char readChar() throws IOException {
 din.readFully(work, 0, 2);
 return (char) ((work[1] & 0xff) << 8 | (work[0] & 0xff));
 }
 public final double readDouble() throws IOException {
 return Double.longBitsToDouble(readLong());
 }
 public final float readFloat() throws IOException {
 return Float.intBitsToFloat(readInt());
 }
 public final void readFully(byte ba[]) throws IOException {
 din.readFully(ba, 0, ba.length);
 }
 public final void readFully(byte ba[], int off, int len) throws IOException {
 din.readFully(ba, off, len);
 }
 public final int readInt() throws IOException {
 din.readFully(work, 0, 4);
 return (work[3]) << 24 | (work[2] & 0xff) << 16 | (work[1] & 0xff) << 8 | (work[0] & 0xff);
 }
 public final String readLine() throws IOException {
 return din.readLine();
 }
 public final long readLong() throws IOException {
 din.readFully(work, 0, 8);
 return (long) (work[7]) << 56 |
 (long) (work[6] & 0xff) << 48 | (long) (work[5] & 0xff) << 40 | (long) (work[4] & 0xff) << 32
 | (long) (work[3] & 0xff) << 24 | (long) (work[2] & 0xff) << 16 
 | (long) (work[1] & 0xff) << 8 | (long) (work[0] & 0xff);
 }
 public final short readShort() throws IOException {
 din.readFully(work, 0, 2);
 return (short) ((work[1] & 0xff) << 8 | (work[0] & 0xff));
 }
 public final String readUTF() throws IOException {
 return din.readUTF();
 }
 public final int readUnsignedByte() throws IOException {
 return din.readUnsignedByte();
 }
 public final int readUnsignedShort() throws IOException {
 din.readFully(work, 0, 2);
 return ((work[1] & 0xff) << 8 | (work[0] & 0xff));
 }
 public final int skipBytes(int n) throws IOException {
 return din.skipBytes(n);
 }
 }
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　小端数据输入流　
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