java DataInputStream和DataOutputStream詳解
操作基本數據類型的流
DataInputStream
DataOutputStream
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import java.io.DataInputStream;import java.io.DataOutputStream;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException; public class IntegerDemo { public static void main(String[] args) throws IOException { myWrite(); myReader(); } private static void myWrite() throws IOException { // TODO Auto-generated method stub // 創建數據輸出流對象 FileOutputStream fos = new FileOutputStream("E:\\zikao\\file\\cs.txt"); DataOutputStream dos = new DataOutputStream(fos); // 寫數據 dos.writeByte(10); dos.writeShort(100); dos.writeInt(1000); dos.writeLong(10000); dos.writeFloat(12.34F); dos.writeDouble(12.56); dos.writeChar('a'); dos.writeBoolean(true); // 釋放資源 dos.close(); } private static void myReader() throws IOException { // TODO Auto-generated method stub // 創建數據輸入流對象 FileInputStream fis = new FileInputStream("E:\\zikao\\file\\cs.txt"); DataInputStream dis = new DataInputStream(fis); // 讀數據 byte b = dis.readByte(); short s = dis.readShort(); int i = dis.readInt(); long l = dis.readLong(); float f = dis.readFloat(); double d = dis.readDouble(); char c = dis.readChar(); boolean bl = dis.readBoolean(); // 釋放資源 dis.close(); System.out.println(b); System.out.println(s); System.out.println(i); System.out.println(l); System.out.println(f); System.out.println(d); System.out.println(c); System.out.println(bl); }} |
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