List of usage examples for java.io DataInputStream readChar
public final char readChar() throws IOException
readChar method of DataInput. From source file:Main.java
public static void main(String[] args) throws IOException { byte[] buf = { 65, 66, 67, 68, 69, 70 }; FileOutputStream fos = new FileOutputStream("c:\\test.txt"); DataOutputStream dos = new DataOutputStream(fos); for (byte b : buf) { dos.writeChar(b);/*ww w . j a v a2 s .c om*/ } dos.flush(); InputStream is = new FileInputStream("c:\\test.txt"); DataInputStream dis = new DataInputStream(is); while (dis.available() > 0) { char c = dis.readChar(); System.out.print(c); } }
From source file:InputOutputDemoBinaryFile.java
public static void main(String[] a) throws Exception { //Write primitive values to a binary file "java2s.dat": DataOutputStream dos = new DataOutputStream(new FileOutputStream("java2s.dat")); dos.writeInt(228);//w w w . j a v a 2 s . c o m dos.writeChar(' '); dos.writeUTF("Java Source and Support at www.java2s.com"); dos.close(); //Read primitive values from binary file "java2s.dat": DataInputStream dis = new DataInputStream(new FileInputStream("java2s.dat")); System.out.println(dis.readInt() + "|" + dis.readChar() + "|" + dis.readUTF()); }
From source file:Main.java
public static void main(String[] args) throws IOException { String s = "Hello from java2s.com!!"; FileOutputStream fos = new FileOutputStream("c:\\test.txt"); DataOutputStream dos = new DataOutputStream(fos); dos.writeChars(s);// w w w . ja va 2 s . c o m dos.flush(); InputStream is = new FileInputStream("c:\\test.txt"); DataInputStream dis = new DataInputStream(is); while (dis.available() > 0) { char c = dis.readChar(); System.out.print(c); } }
From source file:Main.java
public static void main(String[] args) throws IOException { byte[] buf = { 65, 66, 67, 68, 69, 70 }; FileOutputStream fos = new FileOutputStream("c:\\test.txt"); DataOutputStream dos = new DataOutputStream(fos); for (byte b : buf) { dos.writeChar(b);// w ww.ja va 2s .c o m } dos.flush(); InputStream is = new FileInputStream("c:\\test.txt"); DataInputStream dis = new DataInputStream(is); while (dis.available() > 0) { char c = dis.readChar(); System.out.print(c); } }
From source file:MainClass.java
public static void main(String args[]) { try {/* www . ja v a 2 s. c o m*/ FileInputStream fis = new FileInputStream("fileName.dat"); // Create a data input stream DataInputStream dis = new DataInputStream(fis); // Read and display data System.out.println(dis.readBoolean()); System.out.println(dis.readByte()); System.out.println(dis.readChar()); System.out.println(dis.readDouble()); System.out.println(dis.readFloat()); System.out.println(dis.readInt()); System.out.println(dis.readLong()); System.out.println(dis.readShort()); // Close file input stream fis.close(); } catch (Exception e) { System.out.println("Exception: " + e); } }
From source file:DataIODemo.java
public static void main(String[] args) throws IOException { // write the data out DataOutputStream out = new DataOutputStream(new FileOutputStream("invoice1.txt")); double[] prices = { 19.99, 9.99, 15.99, 3.99, 4.99 }; int[] units = { 12, 8, 13, 29, 50 }; String[] descs = { "Java T-shirt", "Java Mug", "Duke Juggling Dolls", "Java Pin", "Java Key Chain" }; for (int i = 0; i < prices.length; i++) { out.writeDouble(prices[i]);/* w w w .ja v a2 s . co m*/ out.writeChar('\t'); out.writeInt(units[i]); out.writeChar('\t'); out.writeChars(descs[i]); out.writeChar('\n'); } out.close(); // read it in again DataInputStream in = new DataInputStream(new FileInputStream("invoice1.txt")); double price; int unit; StringBuffer desc; double total = 0.0; try { while (true) { price = in.readDouble(); in.readChar(); // throws out the tab unit = in.readInt(); in.readChar(); // throws out the tab char chr; desc = new StringBuffer(20); char lineSep = System.getProperty("line.separator").charAt(0); while ((chr = in.readChar()) != lineSep) desc.append(chr); System.out.println("You've ordered " + unit + " units of " + desc + " at $" + price); total = total + unit * price; } } catch (EOFException e) { } System.out.println("For a TOTAL of: $" + total); in.close(); }
From source file:Main.java
public static void main(String[] args) throws Exception { FileInputStream fin = new FileInputStream("myfile.dat"); DataInputStream din = new DataInputStream(fin); while (true) { int theNumber = din.readInt(); //double theNumber = din.readDouble(); //System.out.println(din.readUTF()); //boolean b = din.readBoolean(); byte b = din.readByte(); System.out.println("byte : " + b); System.out.println(theNumber); char ch = din.readChar(); System.out.println("Char : " + ch); float f = din.readFloat(); System.out.println("float : " + f); long l = din.readLong(); System.out.println("long : " + l); }//from w ww .j a va2 s. c om }
From source file:Main.java
public static char readChar(DataInputStream in) throws IOException { return in.readChar(); }
From source file:Main.java
public static Object[] readSettings(String file) throws IOException { DataInputStream in = new DataInputStream(new FileInputStream(file)); try {/*from w ww. ja v a 2s. c o m*/ Object[] res = new Object[in.readInt()]; for (int i = 0; i < res.length; i++) { char cl = in.readChar(); switch (cl) { case 'S': res[i] = in.readUTF(); break; case 'F': res[i] = in.readFloat(); break; case 'D': res[i] = in.readDouble(); break; case 'I': res[i] = in.readInt(); break; case 'L': res[i] = in.readLong(); break; case 'B': res[i] = in.readBoolean(); break; case 'Y': res[i] = in.readByte(); break; default: throw new IllegalStateException("cannot read type " + cl + " from " + file); } } return res; } finally { in.close(); } }
From source file:com.zack6849.alphabot.api.Utils.java
public static String checkServerStatus(InetAddress i, int port) { String returns = "Error."; try {//w ww.j a v a 2s . c o m //wow...i never actually used the port argument? Socket s = new Socket(i, port); DataInputStream SS_BF = new DataInputStream(s.getInputStream()); DataOutputStream d = new DataOutputStream(s.getOutputStream()); d.write(new byte[] { (byte) 0xFE, (byte) 0x01 }); SS_BF.readByte(); short length = SS_BF.readShort(); StringBuilder sb = new StringBuilder(); for (int in = 0; in < length; in++) { char ch = SS_BF.readChar(); sb.append(ch); } String all = sb.toString().trim(); System.out.println(all); String[] args1 = all.split("\u0000"); if (args1[3].contains("")) { returns = "MOTD: " + args1[3].replaceAll("[a-m]", "").replaceAll("[1234567890]", "") + " players: [" + args1[4] + "/" + args1[5] + "]"; } else { returns = "MOTD: " + args1[3] + " players: [" + args1[4] + "/" + args1[5] + "]"; } } catch (UnknownHostException e1) { returns = "the host you specified is unknown. check your settings."; } catch (IOException e1) { returns = "sorry, we couldn't reach this server, make sure that the server is up and has query enabled."; } return returns; }