Question

how to write this class using this UML diagram in Java:

Note: Please also explain.

TileBag

- tiles:ArrayList<Tile>

+ TileBag(File f)

+ drawRandomTile(): Tile

+swapTile(tile: Tile): Tile

Answer 1

import java.util.ArrayList;

class TileBag {
   ArrayList<Tile> tiles; // this is the only data member in the class.
   // Method 1
   public void TileBag(File f) {}
   // Method 2
   public Tile drawRandomTile() {return null;}
   // Method 3
   public Tile swapTile(Tile tile) {return null;}
}