How can I print a HashMap that containts of String and List of Objects?
HashMap<String, List<Object>> Map = new HashMap<String, List<Object>>();
Each object has a name and a key value so I need to get something like:
StringFirst = [ firstObject 15, second object 31, thirdobject 16]
StringSecond = [ fourthObject 15, fifthObject 31, sixthObject 16]
public static class Graph {
public class Edge extends Graph {
String edgeName;
int time;
Edge(String edgeName, int time){
this.edgeName = edgeName;
this.time = time;
}
public void Out(){
System.out.println(this.edgeName);
System.out.println(this.time);
}
}
Try this out for printing the map:
for(Map.Entry<String, ArrayList<Edge>> e : map.entrySet()){
for(Edge e1 : e.getValue())
System.out.println(e.getKey() + " = "+ e1.Out());
}
The easiest way to iterate through a map would be to use the keyset.
for(String key: map.keyset()) { System.out.println(key + " = " + map.get(key)); }
On the .get(key)
you may need to handle it differently, or iterate through the returned list
Alternately this is functionally the same,
for(Map.Entry e : map.entrySet()) { System.out.println(e.getKey() + " = "+ e.getValue()); }
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