http://xmlgraphics.apache.org/fop/: Apache FOP (Formatting Objects Processor) is the world's first print formatter driven by XSL formatting objects (XSL-FO) and the world's first output independent formatter. It is a Java application that reads a formatting object (FO) tree and renders the resulting pages to a specified output. Output formats currently supported include PDF, PCL, PS, AFP, TIFF, PNG, SVG, XML (area tree representation), Print, AWT and TXT. The primary output target is PDF. (Apache Software Foundation) 
public class org.apache.fop.pdf.PDFNumber extends org.apache.fop.pdf.PDFObject
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.fop.pdf.PDFNumber
  super_class: org.apache.fop.pdf.PDFObject
{
  private java.lang.Number number;
    descriptor: Ljava/lang/Number;
    flags: (0x0002) ACC_PRIVATE

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.fop.pdf.PDFNumber this
         0: .line 32
            aload 0 /* this */
            invokespecial org.apache.fop.pdf.PDFObject.<init>:()V
         1: .line 33
            aload 0 /* this */
            iconst_0
            invokestatic java.lang.Integer.valueOf:(I)Ljava/lang/Integer;
            putfield org.apache.fop.pdf.PDFNumber.number:Ljava/lang/Number;
         2: .line 34
            return
        end local 0 // org.apache.fop.pdf.PDFNumber this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lorg/apache/fop/pdf/PDFNumber;

  public void <init>(java.lang.Number);
    descriptor: (Ljava/lang/Number;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.fop.pdf.PDFNumber this
        start local 1 // java.lang.Number number
         0: .line 36
            aload 0 /* this */
            invokespecial org.apache.fop.pdf.PDFObject.<init>:()V
         1: .line 37
            aload 0 /* this */
            aload 1 /* number */
            putfield org.apache.fop.pdf.PDFNumber.number:Ljava/lang/Number;
         2: .line 38
            return
        end local 1 // java.lang.Number number
        end local 0 // org.apache.fop.pdf.PDFNumber this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    3     0    this  Lorg/apache/fop/pdf/PDFNumber;
            0    3     1  number  Ljava/lang/Number;
    MethodParameters:
        Name  Flags
      number  

  public java.lang.Number getNumber();
    descriptor: ()Ljava/lang/Number;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.fop.pdf.PDFNumber this
         0: .line 45
            aload 0 /* this */
            getfield org.apache.fop.pdf.PDFNumber.number:Ljava/lang/Number;
            areturn
        end local 0 // org.apache.fop.pdf.PDFNumber this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/fop/pdf/PDFNumber;

  public void setNumber(java.lang.Number);
    descriptor: (Ljava/lang/Number;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.fop.pdf.PDFNumber this
        start local 1 // java.lang.Number number
         0: .line 53
            aload 0 /* this */
            aload 1 /* number */
            putfield org.apache.fop.pdf.PDFNumber.number:Ljava/lang/Number;
         1: .line 54
            return
        end local 1 // java.lang.Number number
        end local 0 // org.apache.fop.pdf.PDFNumber this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    2     0    this  Lorg/apache/fop/pdf/PDFNumber;
            0    2     1  number  Ljava/lang/Number;
    MethodParameters:
        Name  Flags
      number  

  public static java.lang.String doubleOut(java.lang.Double);
    descriptor: (Ljava/lang/Double;)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // java.lang.Double doubleDown
         0: .line 63
            aload 0 /* doubleDown */
            invokevirtual java.lang.Double.doubleValue:()D
            invokestatic org.apache.fop.pdf.PDFNumber.doubleOut:(D)Ljava/lang/String;
            areturn
        end local 0 // java.lang.Double doubleDown
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    1     0  doubleDown  Ljava/lang/Double;
    MethodParameters:
            Name  Flags
      doubleDown  

  public static java.lang.String doubleOut(double);
    descriptor: (D)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // double doubleDown
         0: .line 73
            dload 0 /* doubleDown */
            bipush 6
            invokestatic org.apache.fop.pdf.PDFNumber.doubleOut:(DI)Ljava/lang/String;
            areturn
        end local 0 // double doubleDown
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    1     0  doubleDown  D
    MethodParameters:
            Name  Flags
      doubleDown  

  public static java.lang.String doubleOut(double, int);
    descriptor: (DI)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=4, args_size=2
        start local 0 // double doubleDown
        start local 2 // int dec
         0: .line 86
            iload 2 /* dec */
            iflt 1
            iload 2 /* dec */
            bipush 16
            if_icmple 2
         1: .line 87
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
            ldc "Parameter dec must be between 1 and 16"
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 89
      StackMap locals:
      StackMap stack:
            new java.lang.StringBuffer
            dup
            invokespecial java.lang.StringBuffer.<init>:()V
            astore 3 /* buf */
        start local 3 // java.lang.StringBuffer buf
         3: .line 90
            dload 0 /* doubleDown */
            iload 2 /* dec */
            iload 2 /* dec */
            aload 3 /* buf */
            invokestatic org.apache.xmlgraphics.util.DoubleFormatUtil.formatDouble:(DIILjava/lang/StringBuffer;)V
         4: .line 91
            aload 3 /* buf */
            invokevirtual java.lang.StringBuffer.toString:()Ljava/lang/String;
            areturn
        end local 3 // java.lang.StringBuffer buf
        end local 2 // int dec
        end local 0 // double doubleDown
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    5     0  doubleDown  D
            0    5     2         dec  I
            3    5     3         buf  Ljava/lang/StringBuffer;
    MethodParameters:
            Name  Flags
      doubleDown  
      dec         

  public static java.lang.StringBuffer doubleOut(double, int, java.lang.StringBuffer);
    descriptor: (DILjava/lang/StringBuffer;)Ljava/lang/StringBuffer;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=5, locals=4, args_size=3
        start local 0 // double doubleDown
        start local 2 // int dec
        start local 3 // java.lang.StringBuffer buf
         0: .line 105
            iload 2 /* dec */
            iflt 1
            iload 2 /* dec */
            bipush 16
            if_icmple 2
         1: .line 106
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalArgumentException
            dup
            ldc "Parameter dec must be between 1 and 16"
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 108
      StackMap locals:
      StackMap stack:
            dload 0 /* doubleDown */
            iload 2 /* dec */
            iload 2 /* dec */
            aload 3 /* buf */
            invokestatic org.apache.xmlgraphics.util.DoubleFormatUtil.formatDouble:(DIILjava/lang/StringBuffer;)V
         3: .line 109
            aload 3 /* buf */
            areturn
        end local 3 // java.lang.StringBuffer buf
        end local 2 // int dec
        end local 0 // double doubleDown
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    4     0  doubleDown  D
            0    4     2         dec  I
            0    4     3         buf  Ljava/lang/StringBuffer;
    MethodParameters:
            Name  Flags
      doubleDown  
      dec         
      buf         

  protected java.lang.String toPDFString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=4, locals=2, args_size=1
        start local 0 // org.apache.fop.pdf.PDFNumber this
         0: .line 114
            aload 0 /* this */
            invokevirtual org.apache.fop.pdf.PDFNumber.getNumber:()Ljava/lang/Number;
            ifnonnull 4
         1: .line 115
            new java.lang.IllegalArgumentException
            dup
         2: .line 116
            ldc "The number of this PDFNumber must not be empty"
         3: .line 115
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
         4: .line 118
      StackMap locals:
      StackMap stack:
            new java.lang.StringBuffer
            dup
            bipush 64
            invokespecial java.lang.StringBuffer.<init>:(I)V
            astore 1 /* sb */
        start local 1 // java.lang.StringBuffer sb
         5: .line 119
            aload 1 /* sb */
            aload 0 /* this */
            invokevirtual org.apache.fop.pdf.PDFNumber.getNumber:()Ljava/lang/Number;
            invokevirtual java.lang.Number.doubleValue:()D
            bipush 10
            invokestatic org.apache.fop.pdf.PDFNumber.doubleOut:(DI)Ljava/lang/String;
            invokevirtual java.lang.StringBuffer.append:(Ljava/lang/String;)Ljava/lang/StringBuffer;
            pop
         6: .line 120
            aload 1 /* sb */
            invokevirtual java.lang.StringBuffer.toString:()Ljava/lang/String;
            areturn
        end local 1 // java.lang.StringBuffer sb
        end local 0 // org.apache.fop.pdf.PDFNumber this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    7     0  this  Lorg/apache/fop/pdf/PDFNumber;
            5    7     1    sb  Ljava/lang/StringBuffer;
}
SourceFile: "PDFNumber.java"