I have 2 ArrayLists that have a Array of Strings as a "component". I want to find the "components" whose first element is the same in both ArrayLists.
To be more clear:

```
ArrayList One
first component => {"0", "zero"}
second component => {"1", "one"}
ArrayList Two
first component => {"1", "uno"}
second component => {"2", "two"}

```

I would like to loop through ArrayList Two and find {"1","uno"}.
So far I have a nested loop that loops through the first array and then checks the current component to each component in ArrayList Two. 

```
    for(int i=0; i<One.size(); i++)
    {
        for(int j=0; j<Two.size(); j++)
        {
            if( fileOne.get(i)[0].equals( Two.get(j)[0] ) )
            {
                System.out.print( Two.get(j)[0]+" " );
                System.out.print( Two.get(j)[1] );
                System.out.println();
            }
        }
    }

```

I think there should be a better solution. Any help