如何使用两个不同长度的数组在表中打印值

时间:2018-11-01 16:45:10

标签: java arrays tabular

我想用两个具有不同维数的不同数组创建一个表,但是执行后不能给我正确的输出。

我有以下代码:

String rowHeadingkeys[] = new String[] {"heading1","heading2","heading3","heading4","heading5","heading6","heading7","heading8"};
String rowValuekeys[] = new String[] {"Text1","Text2","Text3","Text4","Text5",
                                    "Text6","Text7","Text8","Text9","Text10",
                                    "Text11","Text12","Text13","Text14","Text15",
                                    "Text16","Text17","Text18","Text19","Text20",
                                    "Text21","Text22","Text23","Text24"};

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

        if(rowHeadingkeys!=null) {

            patientMonitoringTable.addCell(createCell(rowHeadingkeys[i],
                    PDFUtil.BOLD_FONT,1,Element.ALIGN_LEFT));

            for(int j = 0;j<rowValuekeys.length/rowHeadingkeys.length;j++) {

                patientMonitoringTable.addCell(createCell(svo.getFields().get(rowValuekeys[j]).getValue(),
                        PDFUtil.FONT,1,Element.ALIGN_LEFT));
            }

        }
}

我想使其如下所示:

| heading1 | Text1  | Text2  | Text3  |    
| heading2 | Text4  | Text5  | Text6  |    
| heading3 | Text7  | Text8  | Text9  |    
| heading4 | Text10 | Text12 | Text13 |    
| heading5 | Text14 | Text15 | Text16 |    
| heading6 | Text17 | Text18 | Text19 |    
| heading7 | Text20 | Text21 | Text22 |    
| heading8 | Text23 | Text24 | Text24 |

如何实现?

2 个答案:

答案 0 :(得分:0)

我猜您正在获取Text1 |文字2 |文字3 |每个标题。

您不应该在每个循环中分配j = 0。在两个for循环之外初始化一个int index = 0,内部for循环应如下所示。

for(int j = index; j<index + (rowValuekeys.length/rowHeadingkeys.length);j++){

}
index+=rowValuekeys.length/rowHeadingkeys.length;

编辑:

更好的解决方案是:

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

    if(rowHeadingkeys!=null) {

        patientMonitoringTable.addCell(createCell(rowHeadingkeys[i],
                PDFUtil.BOLD_FONT,1,Element.ALIGN_LEFT));

        for(int j = 0;j<rowValuekeys.length/rowHeadingkeys.length;j++) {
      if(innerIndex < rowValuekeys.length)
            patientMonitoringTable.addCell(createCell(svo.getFields().get(rowValuekeys[innerIndex]).getValue(),
                    PDFUtil.FONT,1,Element.ALIGN_LEFT));
           innerIndex++;
        }

    }

}

答案 1 :(得分:0)

如果要从第二个列表中为第一项的每个项选择3个项:

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

    if(rowHeadingkeys!=null) {

        patientMonitoringTable.addCell(createCell(rowHeadingkeys[i],
                PDFUtil.BOLD_FONT,1,Element.ALIGN_LEFT));

        for(int j = 0; j < 3; j++) {

            patientMonitoringTable.addCell(createCell(svo.getFields().get(rowValuekeys[3 * i + j]).getValue(),
                    PDFUtil.FONT,1,Element.ALIGN_LEFT));
        }
    }
}