java - How to resize JTable column to string length? -

i have jtable have last column data field change different string values. want resize column string length. formula string length width?

i'm going using jtable.getcolumnmodel().getcolumn().setpreferredwidth() want know how translate string length width value.

you not interested in string length (nor mapping particular font/metrics). you're interested in preferredsize of renderingcomponent renderers cell content. that, loop through rows , query size, like

 int width = 0;  (row = 0; row < table.getrowcount(); row++) {      tablecellrenderer renderer = table.getcellrenderer(row, mycolumn);      component comp = table.preparerenderer(renderer, row, mycolumn);      width = math.max (comp.getpreferredsize().width, width);  } 

or use jxtable (in swingx project): has method pack() work :-)

edit: reason prefer table's preparerenderer on manually calling getxxrenderercomponent on renderer table might decorate visual properties of renderingcomponent. if decorations effect prefsize of component, manual config off.