public void initTable () {
        int[] fArray = {45,120,80,45,150,150,45,150,150,150,200,150,150,150,150,150,150};
        for (int i=0; i<= table_fullticket.getColumnCount()-1; i++) {
            table_fullticket.getColumnModel().getColumn(i).setPreferredWidth(fArray[i]);
        }
        
        int [] cArray = {45,150,150,150,220,150,270};
        for (int i=0; i<= table_customer.getColumnCount()-1; i++) {
            table_customer.getColumnModel().getColumn(i).setPreferredWidth(cArray[i]);
        }
        
        int[] eArray = {45,150,150,150,130,250};
        for (int i=0; i<= table_employee.getColumnCount()-1; i++) {
            table_employee.getColumnModel().getColumn(i).setPreferredWidth(eArray[i]);
        }
        
        int[] pArray = {45, 200, 800};
        for (int i=0; i<= table_product.getColumnCount()-1; i++) {
            table_product.getColumnModel().getColumn(i).setPreferredWidth(pArray[i]);
        }

        int[] hArray = {70,150,150,700};
        for (int i=0; i<= table_history.getColumnCount()-1; i++) {
            table_history.getColumnModel().getColumn(i).setPreferredWidth(hArray[i]);
        }
    }