Hi,
I might have a trivial problem and hope some of you can explain. Here is the
source code I used, where I wanted to clone c Complex[][] object to
Complex[][] d. The problem is when c matrix is updated, d is also updated
which I did not expect. I expect d to stay the same when c is updated.
Thanks in advance,
Cuong
Code:
System.out.println("Test 1.3");
Complex[][] c = new Complex[][]{{new Complex(1,2), new
Complex(3,4)},
{new Complex(5,6), new Complex(7,8)}};
Complex[][] d = c.clone();
for (int i=0;i<2;i++) {
for (int j=0;j<2;j++) {
System.out.println("
c["+i+"]["+j+"]="+format.format(c[i][j]));
}
}
for (int i=0;i<2;i++) {
for (int j=0;j<2;j++) {
System.out.println("
d["+i+"]["+j+"]="+format.format(d[i][j]));
}
}
System.out.println("Test 1.4");
c[0][0]=c[0][0].multiply(100);
for (int i=0;i<2;i++) {
for (int j=0;j<2;j++) {
System.out.println("
c["+i+"]["+j+"]="+format.format(c[i][j]));
}
}
for (int i=0;i<2;i++) {
for (int j=0;j<2;j++) {
System.out.println("
d["+i+"]["+j+"]="+format.format(d[i][j]));
}
}
And the results are:
Test 1.3
c[0][0]=1.0000000 + 2.0000000i
c[0][1]=3.0000000 + 4.0000000i
c[1][0]=5.0000000 + 6.0000000i
c[1][1]=7.0000000 + 8.0000000i
d[0][0]=1.0000000 + 2.0000000i
d[0][1]=3.0000000 + 4.0000000i
d[1][0]=5.0000000 + 6.0000000i
d[1][1]=7.0000000 + 8.0000000i
Test 1.4
c[0][0]=100.0000000 + 200.0000000i
c[0][1]=3.0000000 + 4.0000000i
c[1][0]=5.0000000 + 6.0000000i
c[1][1]=7.0000000 + 8.0000000i
d[0][0]=100.0000000 + 200.0000000i
d[0][1]=3.0000000 + 4.0000000i
d[1][0]=5.0000000 + 6.0000000i
d[1][1]=7.0000000 + 8.0000000i
