Dan's Question:clone()

[tonghua li]

Hello everyone,I often come to this forum to learn Java,but It is the first time post new topic.
Could someone tell me why the output is 1,1,2?
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class Amber {
public static void main(String[] args) {
int[][] a = {{1,2},{0,1,2},{-1,0,2}};
Object[] obj = (Object[])a.clone();
for(int i = 0; i < obj.length; i++) {
int[] ia = (int[])obj[i];
System.out.println(ia[i]+",");
}
}
}

[Dan Chisholm]

Welcome to the JavaRanch and thank you for using my exam.
The program prints the values contained in ia[0][0], ia[1][1] and ia[2][2].