Copying excel content from one file to another (only odd rows) not giving expected results in thein following code

package Excel;
import jxl.*;
import jxl.Workbook;
import jxl.read.biff.*;
import java.io.File;
import java.io.IOException;
import jxl.write.WriteException;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.Label; 
  
public class CreateExcel {
 
	public static void main(String[] args) throws IOException, WriteException, BiffException
	{
			// TODO Auto-generated method stub
			int even=1,k=0;
			final File  outputWorkbook;
			try
			{
         
				File f1=new File("C:\\Users\\abc\\Desktop\\LetsCheck.xls");  //the excel sheet which contains data
		        WorkbookSettings ws=new WorkbookSettings();
		        //ws.setLocale(new Locale("er","ER"));
		        Workbook workbook=Workbook.getWorkbook(f1,ws); 
		          
		        Sheet readsheet=workbook.getSheet(0);
		       // System.out.println(readsheet.getName());  
		        File f2= new File("C:\\Users\\abc\\Desktop\\TestExcel.xls");
		       // outputWorkbook = new File("C:\\Users\\abc\\Desktop\\TestExcel.xls");  // the excel sheet where data is to copied
		       
//       WritableWorkbook workbook1=Workbook.createWorkbook(f2);
       WritableWorkbook workbook1= workbook.createWorkbook(f2);
		        WritableSheet sheet1 = workbook1.getSheet("Data");
		        int i=0,j=0;   //following code copies the data from LetsCheck.xls to testatul.xls 
		        for(j=0;j<readsheet.getColumns();j+=1)
		        {      
//		        	System.out.println(readsheet.getColumns());
//		        	System.out.println(readsheet.getRows());
		        	k=0;
		        	for(i=0;i<readsheet.getRows();i+=1)  
		        	{       
		        		
		        	/*	if(even%2==1)
		        		{
		        			even++;
		        			continue;
		        		}
		        		else
		        		{
//		        		*/	even++;
		        			/*if(readsheet.getCell(j,i).getType()==(CellType.LABEL))    
			        		{
		        				String s=readsheet.getCell(j,i).getContents();
		        				//System.out.println(s);
			        			Label Name=new Label(j,k,s);
			        			k++;
			        			System.out.println(Name.getContents());
			        			sheet1.addCell(Name);
			        			 
			        		}
		        			else if(readsheet.getCell(j,i).getType()==(CellType.NUMBER)) 
			        		{   
	                      
			        			String s=readsheet.getCell(j,i).getContents();      
			        			Label Name1=new Label(j,k,s);
			        			k++;
			        			System.out.println(Name1.getContents());
			        			sheet1.addCell(Name1);
			        			//System.out.println(s);
			        		}*/
	        			String s=readsheet.getCell(j,i).getContents();      

		        		   
                      if(i%2!=0) 
                      {
		        			Label Name1=new Label(j,k, s);
		        			k++;
		        			System.out.println(Name1.getString());
		        	
		        			
		        			sheet1.addCell(Name1);
		        			//System.out.println(s);
		        			//FileOutputStream outputStream = new FileOutputStream("TestExcel.xls");
		        			
		        			//workbook.Write(outputStream)   
		        	            
                      }
		        				        		          
		        	}
		        }
		        workbook1.write();   
		        workbook1.close();
            }
        	catch(ArrayIndexOutOfBoundsException e)
        	{
        		System.out.println("Array Error");
        	}        
            catch(IOException e)
            {
             e.printStackTrace();
            }
            catch(BiffException e)
            {
             e.printStackTrace();
            }
		}
    }