pat.java

 protected void init(int[] shape) {
         ensureNotCleanedUp();
         this.shape = shape;

         if (this.shape.length == 1) {
             rows = 1;
             columns = this.shape[0];
         } else if (this.shape().length == 2) {

                 rows = shape[0];
                 columns = shape[1];

         }