/*
 * 陣列+常用類的習題
 * 
 */
public class Home1 {
	public static void main(String[] args) {
		String s = "1,2,3!4,5,7,8!34,45,78!3453,45";
		// 1.確定二維陣列內有幾個一維陣列
		String[] split = s.split("!");// spit[0]=1,2,3
		//System.out.println(Arrays.toString(split));
			//確定二維陣列的長度
		int[][] arr1 = new int[split.length][];
		// 確定二維陣列內一維陣列的個數
		for (int i = 0; i < arr1.length; i++) {
			String[] split2 = split[i].split(",");
			// 確定二維陣列內一維陣列的長度
			arr1[i] = new int[split2.length];
			for (int j = 0; j < arr1[i].length; j++) {
				// 將String-->int Integer.paseInt(String s);
				arr1[i][j] = Integer.parseInt(split2[j]);
			}

		}