```
public class DoubleIntListHashMap
extends Object
```
This class provides a memory-efficient replacement for HashMap<Double,IntArrayList> for restricted use cases.

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`appendValue(double key, int value)`	Append value into the hashmap, but ignore all zero keys.
`ArrayList<DoubleIntListHashMap.DIListEntry>`	`extractValues()`
`IntArrayList`	`get(double key)`
`int`	`size()`
`String`	`toString()`

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

public DoubleIntListHashMap(int init_capacity)

public IntArrayList get(double key)

public ArrayList<DoubleIntListHashMap.DIListEntry> extractValues()

Constructor	Description
`DoubleIntListHashMap()`
`DoubleIntListHashMap(int init_capacity)`

Class DoubleIntListHashMap