public class Node $\{$

String name;

String val;

String abbrev;

ArrayList outgoingEdges;

ArrayList incomingEdges;

public Node$($String var$1)\{$

this.setAbbrev$($var$1)$;

this.val $=$ null;

this.name $=$ null;

this.outgoingEdges $=$ new ArrayList$()$;

this.incomingEdges $=$ new ArrayList$()$;

$\}$

public String getAbbrev$()\{$

return this.abbrev;

$\}$

public String getName$()\{$

return this.name;

$\}$

public String getVal$()\{$

return this.val;

$\}$

public ArrayList getOutgoingEdges$()\{$

return this.outgoingEdges;

$\}$

public ArrayList getIncomingEdges$()\{$

return this.incomingEdges;

$\}$

public void setAbbrev$($String var$1)\{$

this.abbrev $=$ var$1$;

$\}$

public void setName$($String var$1)\{$

this.name $=$ var$1$;

$\}$

public void setVal$($String var$1)\{$

this.val $=$ var$1$;

$\}$

public void addOutgoingEdge$($Edge var$1)\{$

this.outgoingEdges.add$($var$1)$;

$\}$

public void addIncomingEdge$($Edge var$1)\{$

this.incomingEdges.add$($var$1)$;

$\}$

$\}$

public class Edge $\{$

int dist;

Node tail;

Node head;

public Edge$($Node var$1,$ Node var$2,$ int var$3)\{$

this.setDist$($var$3)$;

this.setTail$($var$1)$;

this.setHead$($var$2)$;

$\}$

public Node getTail$()\{$

return this.tail;

$\}$

public Node getHead$()\{$

return this.head;

$\}$

public int getDist$()\{$

return this.dist;

$\}$

public void setTail$($Node var$1)\{$

this.tail $=$ var$1$;

$\}$

public void setHead$($Node var$1)\{$

this.head $=$ var$1$;

$\}$

public void setDist$($int var$1)\{$

this.dist $=$ var$1$;

$\}$

$\}$

STRUGGLING, PLEASE HELP