java - how to set jcheckbox inside jtable dynamically -

Return table head value in this photo appears in the checkbox.

Here, the value from the database

I tried to do this but there was a classcastx for the string of boolean values ​​because

I do not know why this error happened < / P>

This is my code

  static object [] [] information; String [] colName = {"Book", "Member", "Issue Issue", "Date of Return", "Comment", "Return"}; & Lt; Issue & gt; Issues = ServiceFactory.getIssueServiceImpl () findAllIssue () .; Data = new object [issues.size ()] [6]; (Issue Issue: Issues) {Data [i] [0] = Issue .getMemberId (). GetName (); Data [i] [1] = issue.getBookId () getName () .; Data [i] [2] = issue.getIssueDate (); Data [i] [3] = issue.getReturnDate (); Data [i] [4] = issue.getRemark (); Data [i] [5] = issue.getStatus (); I ++; } {Public class getColumnClass (int c) {switch (c) {/ code>  
   
 default table model DTM = new defaulttel model (data, case 0: Return boolean class; Default: return String.class;}}} RetunTable = new JTable (retireTable.setModel (DTM); RetunTable.getTableHeader setReorderingAllowed (incorrect); Retire the Return;  < / Pre> 
 If u know about it, please share the answers here ...  
  Edit   
  DefaultTableModel Dtm = New DefaultTel Model (Data, Column); {Public on C getColumnClass {int (c) {case 0: Return boolean.class; default: return String.class;}}}; dtm .addRow (data); retunTable = new JTable (); retunTable.setModel (DTM ); RetunTable.getTableHeader () setReorderingAllowed (incorrect); Retire the Return;    
 
 
 From the example and code, it looks wrong for me ...  
  DefaultTableModel dtm = New DefaultTableModel (Data, colName); {Public class getColumnClass (int c) {Switch (c) {case 0: return Boolean.class; Default: Return String.class; }}};   
 column  0  "book" ... or more importantly, the  is not an issue. GetMemberId (). GetName ()   
 It should not be ...    DefaultTableModel dtm = New DefaultTableModel (Data, colName); {Public class getColumnClass (int c) {return c == 5? Boolean Category: String Class}};   
 Where is the column 5 "Returns"?