java - 如何使用两个不同长度的数组在表中打印值
问题描述
我想创建一个包含两个不同维度的不同数组的表,但执行后它没有给我正确的输出。
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));
}
}
}
我想让它像下面这样:
| 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 |
如何做到这一点?
解决方案
我猜你会得到 Text1 | 文本2 | 文本3 | 对于每个标题。
您不应该在每个循环中分配 j = 0 。在 for 循环之外初始化 int index=0,内部 for 循环应该如下所示。
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++;
}
}
}