Sort Jtable Column based on two conditions

[Nisha lakshminaraya]

Hello,

I have Jtable with two columns.One colimn has following values in it:

987.65 PB
987.65 TB
9.87 GB
987.65 MB
98.76 PB
98.76 TB
9.87 PB
9.87 MB
987.65 GB
9.87 TB
98.76 MB
987.65 kB
98.76 kB
9.87 kB
98.76 GB
0.09 kB
0.00

I have requirement where if i click on column header ,i want column to be sorted in following order:
987.65 PB
98.76 PB
9.87 PB
987.65 TB
98.76 TB
9.87 TB
987.65 GB
98.76 GB
9.87 GB
987.65 MB
98.76 MB
9.87 MB
987.65 kB
98.76 kB
9.87 kB
0.98 kB
0.09 kB
0.00

Thanks,
Nisha

[Moojid Hamid]

You need to utilize javax.swing.table.TableRowSorter and java.util.Comparator. have a look at this tutorial

[Nisha lakshminaraya]

Moojid Hamid wrote:You need to utilize javax.swing.table.TableRowSorter and java.util.Comparator. have a look at this tutorial

Ya i am using what ever mentioned in Tutorial. But it will not be generic.I need to hardcode the column number.Can please help me to do so?

[Moojid Hamid]

I need to hardcode the column number

Could you please elaborate what do you mean by that? You might want to look at the setSortKeys and setComparator methods of the TableRowSorter.

[Nisha lakshminaraya]

Moojid Hamid wrote:

I need to hardcode the column number

Could you please elaborate what do you mean by that? You might want to look at the setSortKeys and setComparator methods of the TableRowSorter.

The sorting i required is for one column ,all other columns should have its default sorting behaviour.
Currently sorting is float values but not on there units so i want sort one column based on float and units as wel.As its for one column only i need to specifically
if (this column then )
use below sorting techinque.

And also i am not very clear about how to sort it based on folat and units values

[Moojid Hamid]

As its for one column only i need to specifically
if (this column then )
use below sorting techinque.

void  setComparator(int column, Comparator<?> comparator) 

And also i am not very clear about how to sort it based on folat and units values

How is the data for that column represented in your TableModel? If it is a String you can split it before doing the comparison in the compareTo method. I would suggest you read the tutorial that I mentioned earlier. Also look up information on how to implement Comparator/Comparable

[Nisha lakshminaraya]

Moojid Hamid wrote:

As its for one column only i need to specifically
if (this column then )
use below sorting techinque.

void  setComparator(int column, Comparator<?> comparator) 

And also i am not very clear about how to sort it based on folat and units values

How is the data for that column represented in your TableModel? If it is a String you can split it before doing the comparison in the compareTo method. I would suggest you read the tutorial that I mentioned earlier. Also look up information on how to implement Comparator/Comparable

I String is displayed in this column. Ya i refered same tutorial .I am using compareTo. I am iteartin and getting column values and then i am doing regular expression to get float value.After this i am not clear what to do

[Nisha lakshminaraya]

Nisha lakshminaraya wrote:

Moojid Hamid wrote:

As its for one column only i need to specifically
if (this column then )
use below sorting techinque.

void  setComparator(int column, Comparator<?> comparator) 

And also i am not very clear about how to sort it based on folat and units values

How is the data for that column represented in your TableModel? If it is a String you can split it before doing the comparison in the compareTo method. I would suggest you read the tutorial that I mentioned earlier. Also look up information on how to implement Comparator/Comparable

I String is displayed in this column. Ya i refered same tutorial .I am using compareTo. I am iteartin and getting column values and then i am doing regular expression to get float value.After this i am not clear what to do

Can any one help me to resolve this issue?