pascals-triangle

/ ** 
* numRows given a value, before generating Pascal triangle with numRows 
* example given. 5 = numRows, 
* return 
* [↵ [1], ↵ [1,1], ↵ [1,2,1] , ↵ [1,3,3,1], ↵ [1,4,6,4,1] ↵] 
* /

of java.util.ArrayList Import; 

/ ** 
 * numRows given a value, before generating Pascal triangle with numRows 
 * example given. 5 = numRows, 
 * return 
 * [↵ [1], ↵ [1,1], ↵ [1,2,1], ↵ [1,3,3,1], ↵ [1,4,6,4,1] ↵] 
 * / 

public class Main51 { 
    public static void main (String [] args) { 
        System.out.println (Main51.generate (. 5)); 
    } 

    public static the ArrayList <the ArrayList <Integer >> Generate (int numRows) { 

        the ArrayList <the ArrayList <Integer List the ArrayList = new new >> <> (); 
        the ArrayList <Integer> the ArrayList = new new Last <> (); 
        IF (numRows == 0) { 
            return List; 
        } 

        for (int I = 0; I <numRows; I ++) {
            ArrayList<Integer> array = new ArrayList<>();
            if (i > 1) {
                last = list.get(i-1);
            }

            for (int j=0;j<=i;j++) {
                if (j==0 || j==i) {
                    array.add(1);
                }else{
                    array.add(last.get(j-1)+last.get(j));
                }
            }
            list.add(array);
        }
        return list;
    }
}