https://openjdk.java.net/projects/openjfx/javafx-graphics/: OpenJFX JavaFX
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public class com.sun.javafx.tk.FontMetrics
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.sun.javafx.tk.FontMetrics
  super_class: java.lang.Object
{
  private float maxAscent;
    descriptor: F
    flags: (0x0002) ACC_PRIVATE

  private float ascent;
    descriptor: F
    flags: (0x0002) ACC_PRIVATE

  private float xheight;
    descriptor: F
    flags: (0x0002) ACC_PRIVATE

  private int baseline;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private float descent;
    descriptor: F
    flags: (0x0002) ACC_PRIVATE

  private float maxDescent;
    descriptor: F
    flags: (0x0002) ACC_PRIVATE

  private float leading;
    descriptor: F
    flags: (0x0002) ACC_PRIVATE

  private float lineHeight;
    descriptor: F
    flags: (0x0002) ACC_PRIVATE

  private javafx.scene.text.Font font;
    descriptor: Ljavafx/scene/text/Font;
    flags: (0x0002) ACC_PRIVATE

  public static com.sun.javafx.tk.FontMetrics createFontMetrics(float, float, float, float, float, float, javafx.scene.text.Font);
    descriptor: (FFFFFFLjavafx/scene/text/Font;)Lcom/sun/javafx/tk/FontMetrics;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=9, locals=7, args_size=7
        start local 0 // float maxAscent
        start local 1 // float ascent
        start local 2 // float xheight
        start local 3 // float descent
        start local 4 // float maxDescent
        start local 5 // float leading
        start local 6 // javafx.scene.text.Font font
         0: .line 40
            new com.sun.javafx.tk.FontMetrics
            dup
            fload 0 /* maxAscent */
            fload 1 /* ascent */
            fload 2 /* xheight */
            fload 3 /* descent */
            fload 4 /* maxDescent */
            fload 5 /* leading */
            aload 6 /* font */
            invokespecial com.sun.javafx.tk.FontMetrics.<init>:(FFFFFFLjavafx/scene/text/Font;)V
            areturn
        end local 6 // javafx.scene.text.Font font
        end local 5 // float leading
        end local 4 // float maxDescent
        end local 3 // float descent
        end local 2 // float xheight
        end local 1 // float ascent
        end local 0 // float maxAscent
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0    1     0   maxAscent  F
            0    1     1      ascent  F
            0    1     2     xheight  F
            0    1     3     descent  F
            0    1     4  maxDescent  F
            0    1     5     leading  F
            0    1     6        font  Ljavafx/scene/text/Font;
    MethodParameters:
            Name  Flags
      maxAscent   
      ascent      
      xheight     
      descent     
      maxDescent  
      leading     
      font        

  public final float getMaxAscent();
    descriptor: ()F
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.javafx.tk.FontMetrics this
         0: .line 50
            aload 0 /* this */
            getfield com.sun.javafx.tk.FontMetrics.maxAscent:F
            freturn
        end local 0 // com.sun.javafx.tk.FontMetrics this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/javafx/tk/FontMetrics;

  public final float getAscent();
    descriptor: ()F
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.javafx.tk.FontMetrics this
         0: .line 60
            aload 0 /* this */
            getfield com.sun.javafx.tk.FontMetrics.ascent:F
            freturn
        end local 0 // com.sun.javafx.tk.FontMetrics this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/javafx/tk/FontMetrics;

  public final float getXheight();
    descriptor: ()F
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.javafx.tk.FontMetrics this
         0: .line 69
            aload 0 /* this */
            getfield com.sun.javafx.tk.FontMetrics.xheight:F
            freturn
        end local 0 // com.sun.javafx.tk.FontMetrics this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/javafx/tk/FontMetrics;

  public final int getBaseline();
    descriptor: ()I
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.javafx.tk.FontMetrics this
         0: .line 81
            aload 0 /* this */
            getfield com.sun.javafx.tk.FontMetrics.baseline:I
            ireturn
        end local 0 // com.sun.javafx.tk.FontMetrics this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/javafx/tk/FontMetrics;

  public final float getDescent();
    descriptor: ()F
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.javafx.tk.FontMetrics this
         0: .line 91
            aload 0 /* this */
            getfield com.sun.javafx.tk.FontMetrics.descent:F
            freturn
        end local 0 // com.sun.javafx.tk.FontMetrics this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/javafx/tk/FontMetrics;

  public final float getMaxDescent();
    descriptor: ()F
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.javafx.tk.FontMetrics this
         0: .line 101
            aload 0 /* this */
            getfield com.sun.javafx.tk.FontMetrics.maxDescent:F
            freturn
        end local 0 // com.sun.javafx.tk.FontMetrics this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/javafx/tk/FontMetrics;

  public final float getLeading();
    descriptor: ()F
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.javafx.tk.FontMetrics this
         0: .line 112
            aload 0 /* this */
            getfield com.sun.javafx.tk.FontMetrics.leading:F
            freturn
        end local 0 // com.sun.javafx.tk.FontMetrics this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/javafx/tk/FontMetrics;

  public final float getLineHeight();
    descriptor: ()F
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // com.sun.javafx.tk.FontMetrics this
         0: .line 121
            aload 0 /* this */
            getfield com.sun.javafx.tk.FontMetrics.lineHeight:F
            freturn
        end local 0 // com.sun.javafx.tk.FontMetrics this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/javafx/tk/FontMetrics;

  public final javafx.scene.text.Font getFont();
    descriptor: ()Ljavafx/scene/text/Font;
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.sun.javafx.tk.FontMetrics this
         0: .line 130
            aload 0 /* this */
            getfield com.sun.javafx.tk.FontMetrics.font:Ljavafx/scene/text/Font;
            ifnonnull 2
         1: .line 131
            aload 0 /* this */
            invokestatic javafx.scene.text.Font.getDefault:()Ljavafx/scene/text/Font;
            putfield com.sun.javafx.tk.FontMetrics.font:Ljavafx/scene/text/Font;
         2: .line 133
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.sun.javafx.tk.FontMetrics.font:Ljavafx/scene/text/Font;
            areturn
        end local 0 // com.sun.javafx.tk.FontMetrics this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lcom/sun/javafx/tk/FontMetrics;

  public void <init>(float, float, float, float, float, float, javafx.scene.text.Font);
    descriptor: (FFFFFFLjavafx/scene/text/Font;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=8, args_size=8
        start local 0 // com.sun.javafx.tk.FontMetrics this
        start local 1 // float maxAscent
        start local 2 // float ascent
        start local 3 // float xheight
        start local 4 // float descent
        start local 5 // float maxDescent
        start local 6 // float leading
        start local 7 // javafx.scene.text.Font font
         0: .line 136
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 139
            aload 0 /* this */
            fload 1 /* maxAscent */
            putfield com.sun.javafx.tk.FontMetrics.maxAscent:F
         2: .line 140
            aload 0 /* this */
            fload 2 /* ascent */
            putfield com.sun.javafx.tk.FontMetrics.ascent:F
         3: .line 141
            aload 0 /* this */
            fload 3 /* xheight */
            putfield com.sun.javafx.tk.FontMetrics.xheight:F
         4: .line 142
            aload 0 /* this */
            fload 4 /* descent */
            putfield com.sun.javafx.tk.FontMetrics.descent:F
         5: .line 143
            aload 0 /* this */
            fload 5 /* maxDescent */
            putfield com.sun.javafx.tk.FontMetrics.maxDescent:F
         6: .line 144
            aload 0 /* this */
            fload 6 /* leading */
            putfield com.sun.javafx.tk.FontMetrics.leading:F
         7: .line 145
            aload 0 /* this */
            aload 7 /* font */
            putfield com.sun.javafx.tk.FontMetrics.font:Ljavafx/scene/text/Font;
         8: .line 146
            aload 0 /* this */
            fload 1 /* maxAscent */
            fload 5 /* maxDescent */
            fadd
            fload 6 /* leading */
            fadd
            putfield com.sun.javafx.tk.FontMetrics.lineHeight:F
         9: .line 147
            return
        end local 7 // javafx.scene.text.Font font
        end local 6 // float leading
        end local 5 // float maxDescent
        end local 4 // float descent
        end local 3 // float xheight
        end local 2 // float ascent
        end local 1 // float maxAscent
        end local 0 // com.sun.javafx.tk.FontMetrics this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0   10     0        this  Lcom/sun/javafx/tk/FontMetrics;
            0   10     1   maxAscent  F
            0   10     2      ascent  F
            0   10     3     xheight  F
            0   10     4     descent  F
            0   10     5  maxDescent  F
            0   10     6     leading  F
            0   10     7        font  Ljavafx/scene/text/Font;
    MethodParameters:
            Name  Flags
      maxAscent   
      ascent      
      xheight     
      descent     
      maxDescent  
      leading     
      font        

  public float getCharWidth(char);
    descriptor: (C)F
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.sun.javafx.tk.FontMetrics this
        start local 1 // char ch
         0: .line 154
            invokestatic com.sun.javafx.tk.Toolkit.getToolkit:()Lcom/sun/javafx/tk/Toolkit;
            invokevirtual com.sun.javafx.tk.Toolkit.getFontLoader:()Lcom/sun/javafx/tk/FontLoader;
            iload 1 /* ch */
            aload 0 /* this */
            invokevirtual com.sun.javafx.tk.FontMetrics.getFont:()Ljavafx/scene/text/Font;
            invokevirtual com.sun.javafx.tk.FontLoader.getCharWidth:(CLjavafx/scene/text/Font;)F
            freturn
        end local 1 // char ch
        end local 0 // com.sun.javafx.tk.FontMetrics this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/sun/javafx/tk/FontMetrics;
            0    1     1    ch  C
    MethodParameters:
      Name  Flags
      ch    

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.sun.javafx.tk.FontMetrics this
         0: .line 158
            new java.lang.StringBuilder
            dup
            ldc "FontMetrics: [maxAscent="
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* this */
            invokevirtual com.sun.javafx.tk.FontMetrics.getMaxAscent:()F
            invokevirtual java.lang.StringBuilder.append:(F)Ljava/lang/StringBuilder;
         1: .line 159
            ldc ", ascent="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            invokevirtual com.sun.javafx.tk.FontMetrics.getAscent:()F
            invokevirtual java.lang.StringBuilder.append:(F)Ljava/lang/StringBuilder;
         2: .line 160
            ldc ", xheight="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            invokevirtual com.sun.javafx.tk.FontMetrics.getXheight:()F
            invokevirtual java.lang.StringBuilder.append:(F)Ljava/lang/StringBuilder;
         3: .line 161
            ldc ", baseline="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            invokevirtual com.sun.javafx.tk.FontMetrics.getBaseline:()I
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
         4: .line 162
            ldc ", descent="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            invokevirtual com.sun.javafx.tk.FontMetrics.getDescent:()F
            invokevirtual java.lang.StringBuilder.append:(F)Ljava/lang/StringBuilder;
         5: .line 163
            ldc ", maxDescent="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            invokevirtual com.sun.javafx.tk.FontMetrics.getMaxDescent:()F
            invokevirtual java.lang.StringBuilder.append:(F)Ljava/lang/StringBuilder;
         6: .line 164
            ldc ", leading="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            invokevirtual com.sun.javafx.tk.FontMetrics.getLeading:()F
            invokevirtual java.lang.StringBuilder.append:(F)Ljava/lang/StringBuilder;
         7: .line 165
            ldc ", lineHeight="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            invokevirtual com.sun.javafx.tk.FontMetrics.getLineHeight:()F
            invokevirtual java.lang.StringBuilder.append:(F)Ljava/lang/StringBuilder;
         8: .line 166
            ldc ", font="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            invokevirtual com.sun.javafx.tk.FontMetrics.getFont:()Ljavafx/scene/text/Font;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/Object;)Ljava/lang/StringBuilder;
            ldc "]"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
         9: .line 158
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 0 // com.sun.javafx.tk.FontMetrics this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   10     0  this  Lcom/sun/javafx/tk/FontMetrics;
}
SourceFile: "FontMetrics.java"