asked on 7/8/2011

Convert 3 lines of JavaScript code to Java (Part 2) - For CEHJ

CEHJ,

I want to be able to add a row in one procedure
and
assign value to one column in another procedure
and
assign value to second column in third procedure.

Using the code you gave me earlier. I am confused.

For example, in JavaScript
arrMem[currArr] = new Array(2); // Adds a row in the array.

arrMem[currArr][0] = lblText; // How I assign value to one column.

Both lines are in separate procedures.

So my problem is... when I add a row, I do not know values.
Also, I may not know values of both columns at the same time.

Thanks,
Ashok

Java JavaScript

Last Comment

CEHJ

7/8/2011

CEHJ

7/8/2011

http://download.oracle.com/javase/6/docs/api/java/util/List.html#set(int, E)

is probably what you need. You can't use that if the element doesn't exist though, so if you want to add placeholder to fill later you could do

rowOne.add("");
rowOne.add("");
...
rowOne.set(0, "foo");

Open in new window

Ashok

7/8/2011

ASKER

I think this will work.

So if I want to set 2nd column's value, I would use

rowOne.set(1, "bar");

Right?

Thanks,
Ashok

CEHJ

7/8/2011

Exactly

Ashok

7/8/2011

ASKER

for (var r = 0; r < currArr; r++) {
       for (var c = 0; c < 2; c++) {
            arrMem[r][c] = ''; // confused here
       }
}

I need help to convert above code....

Thanks,
Ashok

Ashok

7/8/2011

ASKER

arrMem.set(r).set(c) = "";

Is that correct?

CEHJ

7/8/2011

Are we assuming the nested collection is already filled (even to null or empty String)?

Ashok

7/8/2011

ASKER

already filled = YES

array.get(0).set(0,"Foo");
array.get(0).set(1,"Bar");

Is above code valid?

Thanks,
Ashok

ASKER CERTIFIED SOLUTION

CEHJ

7/8/2011

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SOLUTION

CEHJ

7/8/2011

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Ashok

7/8/2011

ASKER

I ran above code.

Made following modification to assign all values like.....

      arrMem.get(0).set(0, "Foo");
      arrMem.get(0).set(1, "Bar");
      arrMem.get(1).set(0, "Foo2");
      arrMem.get(1).set(1, "Bar2");

Working as expected.

Thanks,
Ashok

CEHJ

7/8/2011