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Dan's Question:clone()

 
tonghua li
Greenhorn
Posts: 8
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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?
------------------------------------------------------------------------
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
Ranch Hand
Posts: 1865
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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].
 
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