DataInputStream¶
- class
java.io.
DataInputStream
¶ поток для работы с примитивами
Наследник :py:class::java.io.InputStream
Реализует :py:class::java.io.DataInput
try { ByteArrayOutputStream out = new ByteArrayOutputStream(); DataOutputStream outData = new DataOutputStream(out); outData.writeByte(128); // it would write -128, as casted to byte outData.writeInt(128); outData.writeLong(128); outData.writeDouble(128); outData.close(); byte[] bytes = out.toByteArray(); InputStream in = new ByteArrayInputStream(bytes); DataInputStream inData = new DataInputStream(in); System.out.println("Read data in order it was writen: "); System.out.println("readByte: " + inData.readByte()); System.out.println("readInt: " + inData.readInt()); System.out.println("readLong: " + inData.readLong()); System.out.println("readDouble: " + inData.readDouble()); inData.close(); System.out.println("read the same data in other order (first byte is skipped):"); in = new ByteArrayInputStream(bytes); inData = new DataInputStream(in); System.out.println("readInt: " + inData.readInt()); System.out.println("readDouble: " + inData.readDouble()); System.out.println("readLong: " + inData.readLong()); inData.close(); } catch (Exception e) { System.out.println("Impossible IOException occurs: " + e.toString()); e.printStackTrace(); }