Package java.io

Examples of java.io.DataOutputStream.writeUTF()

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    DataOutputStream ldos = null;
    try {
      File tfc = new File(dir, "TFC");
      if (! tfc.exists()) {
        ldos = new DataOutputStream(new FileOutputStream(tfc));
        ldos.writeUTF(getClass().getName());
        ldos.flush();
      }
    } finally {
      if (ldos != null) ldos.close();
    }
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    DataOutputStream dos = null;
    try {
      File tfc = new File(dir, "TFC");
      if (! tfc.exists()) {
        dos = new DataOutputStream(new FileOutputStream(tfc));
        dos.writeUTF(getClass().getName());
        dos.flush();
      }
    } finally {
      if (dos != null) dos.close();
    }
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            // nanoseconds if available
            try {
                Method m = System.class.getMethod("nanoTime");
                if (m != null) {
                    Object o = m.invoke(null);
                    out.writeUTF(o.toString());
                }
            } catch (Exception e) {
                // nanoTime not found, this is ok (only exists for JDK 1.5 and higher)
                out.writeUTF(e.toString());
            }
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                    Object o = m.invoke(null);
                    out.writeUTF(o.toString());
                }
            } catch (Exception e) {
                // nanoTime not found, this is ok (only exists for JDK 1.5 and higher)
                out.writeUTF(e.toString());
            }

            // memory
            out.writeInt(new Object().hashCode());
            Runtime runtime = Runtime.getRuntime();
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            out.writeLong(runtime.maxMemory());
            out.writeLong(runtime.totalMemory());

            // environment
            try {
                out.writeUTF(System.getProperties().toString());
            } catch (Exception e) {
                warn("generateAlternativeSeed", e);
            }

            // host name and ip addresses (if any)
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            try {
                // workaround for the Google App Engine: don't use InetAddress
                Class<?> inetAddressClass = Class.forName("java.net.InetAddress");
                Object localHost = inetAddressClass.getMethod("getLocalHost").invoke(null);
                String hostName = inetAddressClass.getMethod("getHostName").invoke(localHost).toString();
                out.writeUTF(hostName);
                Object[] list = (Object[]) inetAddressClass.getMethod("getAllByName", String.class).invoke(null, hostName);
                Method getAddress = inetAddressClass.getMethod("getAddress");
                for (Object o : list) {
                    out.write((byte[]) getAddress.invoke(o));
                }
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    DataOutputStream output = null;
    try {
      output = new DataOutputStream(new FileOutputStream(file));
      output.writeInt(character.id);
      output.writeUTF(character.otherStuff);
      output.writeInt(character.x);
      output.writeInt(character.y);
      return true;
    } catch (IOException ex) {
      ex.printStackTrace();
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      try {
        out.write(MAGIC_NUMBER);
        out.writeByte(FILE_FORMAT_VERSION);

        for (Namespace ns : namespacesMap.values()) {
          out.writeUTF(ns.getName());
          out.writeUTF(ns.getPrefix());
        }
      }
      finally {
        out.close();
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        out.write(MAGIC_NUMBER);
        out.writeByte(FILE_FORMAT_VERSION);

        for (Namespace ns : namespacesMap.values()) {
          out.writeUTF(ns.getName());
          out.writeUTF(ns.getPrefix());
        }
      }
      finally {
        out.close();
      }
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        StringBuilder sb = new StringBuilder();
        sb.append(methodName);
        sb.append(methodDescriptor);
        try {
            das.writeUTF(sb.toString());
        } catch (IOException e) {
            throw new IllegalStateException("Cannot write data for method '" + methodName + "'.", e);
        }
        try {
            das.flush();
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