我已經嘗試了通過改變數組的上限來移除索引超出限制錯誤的各種方法,但是錯誤仍然存在。我哪裏錯了?如何刪除我的程序中的綁定錯誤的索引?
我的程序讀取在Excel工作表的第一列的值(所有的行),並且得到的最大值。然後基於最大值制定標準,並將這些值分類爲低,中,高,並寫回到新的Excel表格中。
import java.io.FileInputStream;
import java.io.IOException;
import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;
import java.io.*;
import java.util.*;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.Label;
import jxl.write.WriteException;
public class Bus3{
List<String> numbusarray = new ArrayList<String>();
List<String> numcommutersarray = new ArrayList<String>();
List<String> numcommercialarray = new ArrayList<String>();
static WritableWorkbook workbook;
static WritableSheet wSheet;
public void readExcel() throws BiffException, IOException, WriteException//method to read contents form excel
{
String FilePath = "Bus1.xls";
Scanner sc = new Scanner(System.in);
int max=0;
FileInputStream fs = new FileInputStream(FilePath);
Workbook wb = Workbook.getWorkbook(fs);
Sheet sh = wb.getSheet("Bus1");// TO get the access to the sheet
int totalNoOfRows = sh.getRows();// To get the number of rows present in sheet
int totalNoOfCols = sh.getColumns();// To get the number of columns present in sheet
System.out.println(totalNoOfRows);
//adding excel contents from every column to arraylist
for (int row = 1; row <totalNoOfRows; row++)
{
numbusarray.add(sh.getCell(2, row).getContents());
}
for (int row = 1; row <totalNoOfRows; row++)
{
numcommutersarray.add(sh.getCell(3, row).getContents());
}
for (int row = 1; row <totalNoOfRows; row++)
{
numcommercialarray.add(sh.getCell(4, row).getContents());
}
//to find maximum of numbusarray
max=Integer.parseInt(numbusarray.get(0));
for (int row = 1; row < totalNoOfRows-1; row++)
{
if(!(numbusarray.get(row)).isEmpty())
{
int intNumber=Integer.parseInt(numbusarray.get(row));
if(intNumber>max)
{
max=intNumber;
//System.out.println(max);
}
}
}
System.out.println(max);
WritableWorkbook workbook = Workbook.createWorkbook(new File("sampletestfile.xls"));
WritableSheet wSheet = workbook.getSheet(0);
int increment=max/3;
int a=increment;
int b=a+increment;
int c=b+increment;
for (int row = 0; row < totalNoOfRows-1; row++)
{
if(!(numbusarray.get(row)).isEmpty())
{
int compare=Integer.parseInt(numbusarray.get(row));
if(compare<=a)
{Label label= new Label(0, row, "Low");//column,row,strngdata
wSheet.addCell(label);}
else if((compare>a)&&(compare<=b))
{Label label= new Label(0, row, "Medium");//column,row,strngdata
wSheet.addCell(label);}
else
{Label label= new Label(0, row, "High");//column,row,strngdata
wSheet.addCell(label);}
}
}
/*Iterator itr=numbusarray.iterator(); //to print arraylist demo
while(itr.hasNext()){
System.out.println(itr.next());
}*/
}//end of method to read contents from excel
//to close file
public static void closeFile()
{
try {
// Closing the writable work book
workbook.write();
workbook.close();
// Closing the original work book
} catch (Exception e)
{
e.printStackTrace();
}
}
public static void main(String args[]) throws BiffException, IOException, WriteException //main class
{
Bus3 DT = new Bus3();
DT.readExcel();
Bus3.closeFile();
}//end of main class
}
調試它,否則請將您的堆棧跟蹤 –
起始行的值設爲0.不要從1開始。所有這些for循環,您初始化i = 1,使它們i = 0.然後嘗試 –
'row
Maverick