DefaultTableCellRenderer doubles not rounded up

All when i add a TableCellRenderer to my JTable

public Component getTableCellRendererComponent(JTable aTable,

Object aNumberValue,

boolean aIsSelected,

boolean aHasFocus,

int aRow,int aColumn){

if (aNumberValue ==null)returnthis;

renderer = super.getTableCellRendererComponent(aTable,

aNumberValue,

aIsSelected,

aHasFocus,

aRow, aColumn);

renderer.setForeground(Color.green);

returnthis;

}

My values in the table which i input are set as following

privatedouble GeneratePrice(){

double d = Math.random() * 100;

return d;

}

So an example value if i don't set the TableCellRender would be 15.22

But when i set the renderer i get a value like 15.23423423423

[1404 byte] By [BenCuthberta] at [2007-11-27 2:21:13]