public class Array2demo2_3 {public static void main (string[] args) {//define initializationint[][] arr = new int[3][];//define high-dimensional arraysArr[0] = new INT[2];low-dimensional arrays defined under//high -level arraysARR[1] = new INT[3]; ARR[2] = new INT[4]; Arr[0][0] = 1;//Initialize the low-dimensional arrayARR[0][1] = 2; Arr[1][0] = 1; ARR[1][1] = 2; ARR[1][2] = 3; Arr[2][0] = 1; ARR[2][1] = 2; ARR[2][2] = 3; ARR[2][3] = 4; for (int i = 0;i<arr.length;i++) {for (int j = 0;j<arr[i].length;j++) {System.out.print (AR R[I][J]); } System.out.println (); }//-------------------------Yang Hui triangle----------------------------int row = 8; int[][] arr1 = new Int[row][row]; for (int i = 0;i<row;i++) {for (int j = 0;j<=i;j++) {if (j = = 0| | j = = i) {arr1[i][j] = 1; }else {Arr1[i][j] = arr1[i-1][j-1]+arr1[i-1][j]; }}} for (int i = 0;i<row;i++) {for (int j = 0;j<=i;j++) { System.out.print (arr1[i][j]+ ""); } System.out.println (); } }}
Java Two-dimensional array definition initialization-yang Hui triangle