IIterate (Apache SystemDS 3.1.0 API)

```
public interface IIterate
```
Class to iterate through the columns of a IColIndex. When initialized it should be at index -1 and then at the call to next you get the first value

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  boolean hasNext()
  Get if the index has a next index.
  
  int next()
  Get next index

- Method Detail
  - next
```
int next()
```
    Get next index
    
    Returns:
    
    the index.
  - hasNext
```
boolean hasNext()
```
    Get if the index has a next index.
    
    Returns:
    
    the next index.