How do you create a Two-Dimensional ArrayList?

Is there a shortcut syntax in Java to create and initialize an ArrayList, much like one does for an Array?

• I want to make an ArrayList in Java quick and easy with one line of code. To do this with an array i would simply type: 1. int[] array = { 1, 2, 3 }; Is there an equivalent for ArrayLists? To clarify, one would usually type: 1. ArrayList<Integer> arrayList = new ArrayList<Integer>(); 2. arrayList.add(1); 3. arrayList.add(2); 4. arrayList.add(3); Is there a shorter way?

• Answer:

  Use a unnamed code block. This unnamed block is executed after the instance is created .