Adding 1D array to 2D array by initializing each row of the 2D array with 1D array

Question

ArrayIndexOutOfBoundsException while I'm using array1[x].length I tried to debug the program & stops while copying the last row of array1.

public static double[][] addRow(double[][] array1, double[] array2){
        double[][] copy=new double[array1.length+1][];
        for(int x=0;x<array1.length;x++){
          for(int y=0;y<array1[x].length;y++){
              double[] temp=new double [array1[x].length];
              temp[x]=array1[x][y];
              System.out.print(temp[x]+" ");
          }System.out.println();
            
           
        }
       
       
        return copy;
    }```