import java.util.Arrays;
 
class Example {
    public static void main(String[] args) {
        String str = "1|2|3#1|2";
        String[] strs = str.split("#");
        String[][] result = new String[strs.length][];
        for (int i = 0; i < strs.length; ++i) {
            result[i] = strs[i].split("\\|");
        }
 
		// Show result:
        for (String[] a : result) {
            System.out.println(Arrays.toString(a));
        }
    }
}

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