OrderInstruction [] orderInstructions = new OrderInstruction [2];

orderInstructions[0] = colorOrderInstruction;

orderInstructions [1] = speedOrderInstruction;

5.加入选择指令，数据，条件和排序指令到SelectStatement中：

SelectStatement selectStatement  = new SelectStatement(selectInstructions, data,

            conditions, orderInstructions);

6.执行这个Statemment并得到返回结果：

ResultTable resultTable  = new Executor().execute(selectStatement );

7.操作得到的结果级。比如：

System.out.print("Columns:");

        for(int i = 0; i < resultTable.getColumnNames().length; i ++){

            System.out.print("\t");

            System.out.print(resultTable.getColumnNames()[i]);

        }

        Object[][] resultData = resultTable.getResultData();

        for(int i = 0; i < resultData.length; i ++){

            System.out.println();

            System.out.print("Row " + i + "  :");

            for(int e = 0; e < resultData[i].length; e ++){

                System.out.print("\t");

                System.out.print(resultData[i][e]);

            }

        }

这太复杂了，帮帮我吧！

如果你只想显示所有public getter()提供的属性该怎么做？如下代码就好了：

SelectInstruction[] selectInstructions = new SelectInstruction[]{new SelectInstruction("*", null)};

ResultTable resultTable = new Executor().ex

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