Programmatically select a row in JTable

Question

When the application is started  none of the rows is selected  But I would like to show that the first row is already selected    How to do this  Do I need to set the color of a row in JTable    Update  I tried table setRowSelectionInterval 0 0   I know it should work  but there is an error message   Exception in thread  AWT-EventQueue-0  java lang IllegalArgumentException  Row index out of range     at javax swing JTable boundRow Unknown Source      at javax swing JTable setRowSelectionInterval Unknown Source      at cpn gui OptPanel createForm OptPanel java 124      at cpn gui OptPanel  lt init gt  OptPanel java 50      at cpn gui Login 1 actionPerformed Login java 62      at javax swing AbstractButton fireActionPerformed Unknown Source      at javax swing AbstractButton Handler actionPerformed Unknown Source      at javax swing DefaultButtonModel fireActionPerformed Unknown Source      at javax swing DefaultButtonModel setPressed Unknown Source      at javax swing plaf basic BasicButtonListener mouseReleased Unknown Source      at java awt Component processMouseEvent Unknown Source      at javax swing JComponent processMouseEvent Unknown Source      at java awt Component processEvent Unknown Source      at java awt Container processEvent Unknown Source      at java awt Component dispatchEventImpl Unknown Source      at java awt Container dispatchEventImpl Unknown Source      at java awt Component dispatchEvent Unknown Source      at java awt LightweightDispatcher retargetMouseEvent Unknown Source      at java awt LightweightDispatcher processMouseEvent Unknown Source      at java awt LightweightDispatcher dispatchEvent Unknown Source      at java awt Container dispatchEventImpl Unknown Source      at java awt Window dispatchEventImpl Unknown Source      at java awt Component dispatchEvent Unknown Source      at java awt EventQueue dispatchEventImpl Unknown Source      at java awt EventQueue access 000 Unknown Source      at java awt EventQueue 1 run Unknown Source      at java awt EventQueue 1 run Unknown Source      at java security AccessController doPrivileged Native Method      at java security AccessControlContext 1 doIntersectionPrivilege Unknown Source      at java security AccessControlContext 1 doIntersectionPrivilege Unknown Source      at java awt EventQueue 2 run Unknown Source      at java awt EventQueue 2 run Unknown Source      at java security AccessController doPrivileged Native Method      at java security AccessControlContext 1 doIntersectionPrivilege Unknown Source      at java awt EventQueue dispatchEvent Unknown Source      at java awt EventDispatchThread pumpOneEventForFilters Unknown Source      at java awt EventDispatchThread pumpEventsForFilter Unknown Source      at java awt EventDispatchThread pumpEventsForHierarchy Unknown Source      at java awt EventDispatchThread pumpEvents Unknown Source      at java awt EventDispatchThread pumpEvents Unknown Source      at java awt EventDispatchThread run Unknown Source

User · Answer

You use the available API of JTable and do not try to mess with the colors   Some selection methods are available directly on the JTable  like the setRowSelectionInterval   If you want to have access to all selection-related logic  the selection model is the place to start looking

User · Answer

It is an old post  but I came across this recently  Selecting a specific interval  As  aleroot already mentioned  by using   table setRowSelectionInterval index0  index1     You can specify an interval  which should be selected    Adding an interval to the existing selection  You can also keep the current selection  and simply add additional rows by using this here  table getSelectionModel   addSelectionInterval index0  index1     This line of code additionally selects the specified interval  It doesn t matter if that interval already is selected  of parts of it are selected

User · Answer

You can do it calling setRowSelectionInterval    table setRowSelectionInterval 0  0     to select the first row

[java] Programmatically select a row in JTable

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