Examples of java.util.Formatter$FloatUtil

java.util.Formatter
Formatter provides the method to give out formatted string just like the printf-style. Layout,alignment and other format flags are provided to format numeric,string and date/time as well as locale-specified formats applied. Besides primitive types, formatter also support some java object types such as BigInteger,BigDecimal and Calendar. Customized formatting is provided through the Formattable interface. The class is not multi-threaded safe. The responsibility to maintain thread safety is the user's job. @since 1.5

    public static String getTimeString(DateTime date) {
        return getTimeString(date.getTime());
    }


    public static String getTimeString(long time) {
        return new Formatter().format("%020d", time).toString();
    }

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        }
        return true;
    }


    private String wordProbToString(double[] prob) {
        Formatter formatter = new Formatter();
        for(int j=0;j<prob.length;++j) {
            double p = prob[j];
            if (p>=0.00001) {
                formatter.format(" %s:%.5f", langlist.get(j), p);
            }
        }
        String string = formatter.toString();
        formatter.close();
        return string;
    }

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        int readLen;
        while ((readLen = str.read(buffer, 0, buffer.length)) != -1) {
            dgest.update(buffer, 0, readLen);
        }
        str.close();
        Formatter fmt = new Formatter();
        for (byte b : dgest.digest()) {
            fmt.format("%02X", b);
        }
        String result = fmt.toString();
        fmt.close();
        return result;
    }

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    }
    int bucketWidth = (int)Math.ceil((float)(max - min) / height);
    int[] counts = count(bucketWidth, values);
    int maxCount = max(counts);
    StringBuilder out = new StringBuilder();
    Formatter formatter = new Formatter(out);
    formatter.format("%8d %" + width + "d", 0, maxCount);
    rows[0] = out.toString();
    for (int i = 0; i < counts.length; i++) {
      out.setLength(0);
      int bucketId = (int) (min + bucketWidth * i + bucketWidth / 2f);
      PieGraph pieGraph = new PieGraph(width, new CharMarker(marker.get(i, bucketId), ' '));
      String bar = pieGraph.render(counts[i], maxCount - counts[i]);
      formatter.format("%6d |%s:%6d", bucketId, bar, counts[i]);
      rows[i + 1] = out.toString();
    }
    return rows;
  }

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      if (out == null) {
        System.out.println("Another balancer is running. Exiting...");
        return ALREADY_RUNNING;
      }


      Formatter formatter = new Formatter(System.out);
      System.out.println("Time Stamp               Iteration#  Bytes Already Moved  Bytes Left To Move  Bytes Being Moved");
      int iterations = 0;
      while (true ) {
        /* get all live datanodes of a cluster and their disk usage
         * decide the number of bytes need to be moved
         */
        long bytesLeftToMove = initNodes();
        if (bytesLeftToMove == 0) {
          System.out.println("The cluster is balanced. Exiting...");
          return SUCCESS;
        } else {
          LOG.info( "Need to move "+ StringUtils.byteDesc(bytesLeftToMove)
              +" bytes to make the cluster balanced." );
        }
        
        /* Decide all the nodes that will participate in the block move and
         * the number of bytes that need to be moved from one node to another
         * in this iteration. Maximum bytes to be moved per node is
         * Min(1 Band worth of bytes,  MAX_SIZE_TO_MOVE).
         */
        long bytesToMove = chooseNodes();
        if (bytesToMove == 0) {
          System.out.println("No block can be moved. Exiting...");
          return NO_MOVE_BLOCK;
        } else {
          LOG.info( "Will move " + StringUtils.byteDesc(bytesToMove) +
              "bytes in this iteration");
        }
   
        formatter.format("%-24s %10d  %19s  %18s  %17s\n", 
            DateFormat.getDateTimeInstance().format(new Date()),
            iterations,
            StringUtils.byteDesc(bytesMoved.get()),
            StringUtils.byteDesc(bytesLeftToMove),
            StringUtils.byteDesc(bytesToMove)

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  }
  public static int unlimited() {
    return -1;
  }
  public static String inKb(long bytes) {    
    return new Formatter().format("%(,.1fKb", (double)bytes/1024).toString();
  }

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  }
  public static String inKb(long bytes) {    
    return new Formatter().format("%(,.1fKb", (double)bytes/1024).toString();
  }
  public static String inMb(long bytes) {    
    return new Formatter().format("%(,.1fMb", (double)bytes/1024/1024).toString();
  }

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  }
  public static String inMb(long bytes) {    
    return new Formatter().format("%(,.1fMb", (double)bytes/1024/1024).toString();
  }
  public static String inGb(long bytes) {    
    return new Formatter().format("%(,.1fKb", (double)bytes/1024/1024/1024).toString();
  }

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      /*
       * Note that I can't simply use URI.java to encode because it will escape pre-existing escaped things. TODO:
       * replace/compare to with Rewrite Encoding
       */
      StringBuilder outBuf = null;
      Formatter formatter = null;
      for (int i = 0; i < in.length(); i++)
      {
         char c = in.charAt(i);
         boolean escape = true;
         if (c < 128)
         {
            if (asciiQueryChars.get(c))
            {
               escape = false;
            }
         }
         else if (!Character.isISOControl(c) && !Character.isSpaceChar(c))
         {
            /*
             * not-ascii
             */
            escape = false;
         }
         if (!escape)
         {
            if (outBuf != null)
               outBuf.append(c);
         }
         else
         {
            /*
             * escape
             */
            if (outBuf == null)
            {
               outBuf = new StringBuilder(in.length() + 5 * 3);
               outBuf.append(in, 0, i);
               formatter = new Formatter(outBuf);
            }
            /*
             * leading %, 0 padded, width 2, capital hex
             */
            formatter.format("%%%02X", (int) c);// TODO
         }
      }
      return outBuf != null ? outBuf : in;
   }

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    }


    @Override
    public String toString() {
        // Output into coordinate format. Indices start from 1 instead of 0
        Formatter out = new Formatter();


        out.format("%10d %10d %19d\n", numRows, numColumns, Matrices
                .cardinality(this));


        int i = 0;
        for (MatrixEntry e : this) {
            if (e.get() != 0)
                out.format("%10d %10d % .12e\n", e.row() + 1, e.column() + 1, e.get());
            if (++i == 100) {
                out.format("...\n");
                break;
            }
        }


        return out.toString();
    }

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