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Jun 20th, 2019
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  1. DefaultTableModel model = new DefaultTableModel(
  2. lista.toArray(new String[lista.size()][]), nomesColunas);
  3. //define o model da sua tabela
  4. tabela_relatorio.setModel(model);
  5. //adiciona no contentpane, coloque dentro de um JScrollPane pois caso
  6. //contrário não aparecerão os nomes das colunas
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