我需要根据找到的行数据总结Excel Column（1）值。
我的excel文件如下：
column(0) column(1)
Row[0] ECIN - INPUT VALUE (ADD) NetTradeAllowanceAmount = -600.00
Row[1] ECIN - INPUT VALUE (ADD) CashDownPayment = 300.00
Row[2] ECIN - INPUT VALUE (ADD) OtherDownPaymentAmount = PATH DOES NOT EXIST
Row[3] ECIN - INPUT VALUE (ADD) CashDownPayment = 400.00
Row[4] ECIN - INPUT VALUE (SUB) OtherDownPaymentAmount = PATH DOES NOT EXIST
Row[5] ECIN - INPUT VALUE (SUB) ManufacturerRebateAmount = 500.00
Row[6] ECIN - INPUT VALUE (SUB) DeferredDownPaymentAmount = -700.00
Row[7] ECIN - INPUT VALUE (SUB) DeferredDownPaymentAmount = 900.00
首先，我需要查看Column（0），所有行：
1.add the column(1) values having rows (ADD) data. (eg: SUM= 300.00 + 400.00 - 600.00 = 700.00 - 600.00 = 100.00)
2.add the column(1) values having rows (SUB) data. (eg: SUM=500.00 - 700.00 + 900.00 = 1400.00 - 700.00 = 700.00)
3.then subtract above two SUMs. (eg: 100.00 - 700.00 = 600.00)
我应该将此结果保存在某个变量中，并将此值记录在其他一些单元格中。
注意：程序不应该考虑value = PATH不存在，即使行有数据（SUB / ADD）。
在某种程度上，我已经编写了代码。它如下：
import java.io.*;
import java.util.*;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.ss.usermodel.*;
public class Hai
{
public static void main(String[] args)
{
try
{
FileInputStream file = new FileInputStream(new File("C:/Users/Excel.xls"));
HSSFWorkbook workbook = new HSSFWorkbook(file);
HSSFSheet sheet = workbook.getSheetAt(5);
Iterator<Row> rowIterator = sheet.iterator();
while(rowIterator.hasNext())
{
Row row = rowIterator.next();
Iterator<Cell> cellIterator = row.cellIterator();
while(cellIterator.hasNext())
{
Cell cell = cellIterator.next();
String Tag=cell.getStringCellValue().toString();
cell = row.getCell(0+1);
if(cell !=null)
if(Tag.contains("ADD"))
{
String Tag1=cell.getStringCellValue().toString();
String[] s= Tag1.split("=");
//System.out.println(s[1]);
if(!s[1].contains("PATH DOES NOT EXIST"))
{
System.out.println(s[1].trim());
}
}
else if(Tag.contains("SUB"))
{
String Tag1=cell.getStringCellValue().toString();
String[] s= Tag1.split("=");
if(!s[1].contains("PATH DOES NOT EXIST"))
{
System.out.println(s[1].trim());
}
}
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
我得到的输出如下：
-600.00
300.00
400.00
500.00
-700.00
900.00
以上值是字符串格式，我想总结这些值。请帮我！
我已将上述值转换为Flaot，如下所示：
Float foo = Float.parseFloat(s[1].trim());
我得到的输出是：
-600.0
300.0
400.0
我想获得两位小数并总结这些值。我无法总结这些价值观。
是这样吗
import java.io.*;
import java.util.*;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.ss.usermodel.*;
public class Hai
{
public static double getSubstraction(double summ, String your)
{
if (your.contains("-"))
{
return main + Double.parseDouble(your.replace("-", ""));
}
else if (your.contains("+"))
{
return main - Double.parseDouble(your.replace("+", ""));
}
else
{
return main - Double.parseDouble(your);
}
}
public static double getSumm(double sub, String your)
{
if (your.contains("-"))
{
return main - Double.parseDouble(your.replace("-", ""));
}
else if (your.contains("+"))
{
return main + Double.parseDouble(your.replace("+", ""));
}
else
{
return main + Double.parseDouble(your);
}
}
public static void main(String[] args)
{
try
{
double summ, sub;
FileInputStream file = new FileInputStream(new File("C:/Users/Pradeep.HALCYONTEKDC/Desktop/19-04-2013.xls"));
HSSFWorkbook workbook = new HSSFWorkbook(file);
HSSFSheet sheet = workbook.getSheetAt(5);
Iterator<Row> rowIterator = sheet.iterator();
while(rowIterator.hasNext())
{
Row row = rowIterator.next();
Iterator<Cell> cellIterator = row.cellIterator();
while(cellIterator.hasNext())
{
Cell cell = cellIterator.next();
String Tag=cell.getStringCellValue().toString();
cell = row.getCell(0+1);
if(cell !=null)
if(Tag.contains("ADD"))
{
String Tag1=cell.getStringCellValue().toString();
String[] s= Tag1.split("=");
//System.out.println(s[1]);
if(!s[1].contains("PATH DOES NOT EXIST"))
{
getSumm() ;
Float foo = Float.parseFloat(s[1].trim());
System.out.println("1---- "+foo);
for(int i=0; i<5;i++)
{
foo+=foo;
//System.out.println(foo);
}
}
}
else if(Tag.contains("SUB"))
{
String Tag1=cell.getStringCellValue().toString();
String[] s= Tag1.split("=");
if(!s[1].contains("PATH DOES NOT EXIST"))
{
getSubstraction();
System.out.println(s[1].trim());
}
}
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
帮助我解决这个问题。
答案 0 :(得分：1)
如果你想用java来操作excel数据，对我来说最好的选择是apache POI 官方网站上有很多教程，如果您在代码中提供一些帮助，我们会尽力帮助您。
将这两种方法添加到您的代码中
private static double getSubstraction(double summ, String your) {
if (your.contains("-")) {
return summ + Double.parseDouble(your.replace("-", ""));
} else if (your.contains("+")) {
return summ - Double.parseDouble(your.replace("+", ""));
} else {
return summ - Double.parseDouble(your);
}
}
private static double getSumm(double sub, String your) {
if (your.contains("-")) {
return sub - Double.parseDouble(your.replace("-", ""));
} else if (your.contains("+")) {
return sub + Double.parseDouble(your.replace("+", ""));
} else {
return sub + Double.parseDouble(your);
}
}
定义两个全局变量double summ和double sub，例如
public class MainCreator {
public static void main(String[] args) throws IOException {
FileInputStream file = new FileInputStream(new File("workbook.xls"));
Workbook wb = new HSSFWorkbook(file);
Sheet sh = wb.getSheetAt(0);
int lastRownum = sh.getLastRowNum();
double summ = 0;
double sub = 0;
for (int i = 0; i < lastRownum + 1; i++) {
Row row = sh.getRow(i);
Cell cell1 = row.getCell(1);
Cell cell2 = row.getCell(2);
if (cell1 != null && cell2 != null) {
String cellValue1 = cell1.getStringCellValue();
String cellValue2 = cell2.getStringCellValue();
String stringNumber = cellValue2.split("=")[1].trim();
if (cellValue1.contains("ADD")) {
if (cellValue2.split("=")[1].trim().contains("PATH DOES NOT EXIST")) {
System.out.println("Path Does Not Exist");
} else {
System.out.println(cellValue1 + "/" + stringNumber);
summ = getSumm(summ, stringNumber);
}
} else if (cellValue1.contains("SUB")) {
if (cellValue2.split("=")[1].trim().contains("PATH DOES NOT EXIST")) {
System.out.println("Path Does Not Exist");
} else {
System.out.println(cellValue1 + "/" + stringNumber);
sub = getSubstraction(sub, stringNumber);
}
} else {
System.out.println("Smt wrong");
}
}
}
System.out.println("Summ = " + summ);
System.out.println("Sub = " + sub);
}
private static double getSubstraction(double main, String your) {
if (your.contains("-")) {
return main + Double.parseDouble(your.replace("-", ""));
} else if (your.contains("+")) {
return main - Double.parseDouble(your.replace("+", ""));
} else {
return main - Double.parseDouble(your);
}
}
private static double getSumm(double main, String your) {
if (your.contains("-")) {
return main - Double.parseDouble(your.replace("-", ""));
} else if (your.contains("+")) {
return main + Double.parseDouble(your.replace("+", ""));
} else {
return main + Double.parseDouble(your);
}
}
}