http://fastutil.di.unimi.it/: fastutil extends the Java Collections Framework by providing type-specific maps, sets, lists and priority queues with a small memory footprint and fast access and insertion; provides also big (64-bit) arrays, sets and lists, and fast, practical I/O classes for binary and text files.
  • Sebastiano Vigna 
public class it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator implements it.unimi.dsi.fastutil.ints.IntBidirectionalIterator
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator
  super_class: java.lang.Object
{
  protected final it.unimi.dsi.fastutil.objects.ObjectBidirectionalIterator<it.unimi.dsi.fastutil.ints.Int2IntMap$Entry> i;
    descriptor: Lit/unimi/dsi/fastutil/objects/ObjectBidirectionalIterator;
    flags: (0x0014) ACC_PROTECTED, ACC_FINAL
    Signature: Lit/unimi/dsi/fastutil/objects/ObjectBidirectionalIterator<Lit/unimi/dsi/fastutil/ints/Int2IntMap$Entry;>;

  public void <init>(it.unimi.dsi.fastutil.objects.ObjectBidirectionalIterator<it.unimi.dsi.fastutil.ints.Int2IntMap$Entry>);
    descriptor: (Lit/unimi/dsi/fastutil/objects/ObjectBidirectionalIterator;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator this
        start local 1 // it.unimi.dsi.fastutil.objects.ObjectBidirectionalIterator i
         0: .line 103
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 104
            aload 0 /* this */
            aload 1 /* i */
            putfield it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator.i:Lit/unimi/dsi/fastutil/objects/ObjectBidirectionalIterator;
         2: .line 105
            return
        end local 1 // it.unimi.dsi.fastutil.objects.ObjectBidirectionalIterator i
        end local 0 // it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    3     0  this  Lit/unimi/dsi/fastutil/ints/AbstractInt2IntSortedMap$KeySetIterator;
            0    3     1     i  Lit/unimi/dsi/fastutil/objects/ObjectBidirectionalIterator<Lit/unimi/dsi/fastutil/ints/Int2IntMap$Entry;>;
    Signature: (Lit/unimi/dsi/fastutil/objects/ObjectBidirectionalIterator<Lit/unimi/dsi/fastutil/ints/Int2IntMap$Entry;>;)V
    MethodParameters:
      Name  Flags
      i     

  public int nextInt();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator this
         0: .line 108
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator.i:Lit/unimi/dsi/fastutil/objects/ObjectBidirectionalIterator;
            invokeinterface it.unimi.dsi.fastutil.objects.ObjectBidirectionalIterator.next:()Ljava/lang/Object;
            checkcast it.unimi.dsi.fastutil.ints.Int2IntMap$Entry
            invokeinterface it.unimi.dsi.fastutil.ints.Int2IntMap$Entry.getIntKey:()I
            ireturn
        end local 0 // it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/ints/AbstractInt2IntSortedMap$KeySetIterator;

  public int previousInt();
    descriptor: ()I
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator this
         0: .line 112
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator.i:Lit/unimi/dsi/fastutil/objects/ObjectBidirectionalIterator;
            invokeinterface it.unimi.dsi.fastutil.objects.ObjectBidirectionalIterator.previous:()Ljava/lang/Object;
            checkcast it.unimi.dsi.fastutil.ints.Int2IntMap$Entry
            invokeinterface it.unimi.dsi.fastutil.ints.Int2IntMap$Entry.getIntKey:()I
            ireturn
        end local 0 // it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/ints/AbstractInt2IntSortedMap$KeySetIterator;

  public boolean hasNext();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator this
         0: .line 116
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator.i:Lit/unimi/dsi/fastutil/objects/ObjectBidirectionalIterator;
            invokeinterface it.unimi.dsi.fastutil.objects.ObjectBidirectionalIterator.hasNext:()Z
            ireturn
        end local 0 // it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/ints/AbstractInt2IntSortedMap$KeySetIterator;

  public boolean hasPrevious();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator this
         0: .line 120
            aload 0 /* this */
            getfield it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator.i:Lit/unimi/dsi/fastutil/objects/ObjectBidirectionalIterator;
            invokeinterface it.unimi.dsi.fastutil.objects.ObjectBidirectionalIterator.hasPrevious:()Z
            ireturn
        end local 0 // it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lit/unimi/dsi/fastutil/ints/AbstractInt2IntSortedMap$KeySetIterator;

  public java.lang.Object next();
    descriptor: ()Ljava/lang/Object;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=1, locals=1, args_size=1
         0: .line 1
            aload 0
            invokeinterface it.unimi.dsi.fastutil.ints.IntIterator.next:()Ljava/lang/Integer;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public java.lang.Object previous();
    descriptor: ()Ljava/lang/Object;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=1, locals=1, args_size=1
         0: .line 1
            aload 0
            invokeinterface it.unimi.dsi.fastutil.ints.IntBidirectionalIterator.previous:()Ljava/lang/Integer;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void forEachRemaining(java.lang.Object);
    descriptor: (Ljava/lang/Object;)V
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=2, locals=2, args_size=2
         0: .line 1
            aload 0
            aload 1
            checkcast java.util.function.IntConsumer
            invokeinterface java.util.PrimitiveIterator$OfInt.forEachRemaining:(Ljava/util/function/IntConsumer;)V
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
SourceFile: "AbstractInt2IntSortedMap.java"
NestHost: it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap
InnerClasses:
  protected KeySetIterator = it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap$KeySetIterator of it.unimi.dsi.fastutil.ints.AbstractInt2IntSortedMap
  public abstract Entry = it.unimi.dsi.fastutil.ints.Int2IntMap$Entry of it.unimi.dsi.fastutil.ints.Int2IntMap
  public abstract OfInt = java.util.PrimitiveIterator$OfInt of java.util.PrimitiveIterator