# Configuring a Job using a tJavaFlex component

The tJavaFlex component is used to inject code at the start/end of a Job and to transform data transformations for each row.

A common Job using tJavaFlex is generally composed of:

* a tFileInputDelimited component to read data from a text file,
* a tJavaFlex to inject specific code at various moment of the Job processing (start, main or end parts),
* a tLogRow component to print data in the console and processing information based on what the code injection says in the start and/or end part of tJavaFlex.

![](https://help.qlik.com/talend/en-US/components/7.3/Resources/images/tjavarow_use_case2.png)

## Procedure

1. In the Palette, slide a tFileInputDelimited , a tJavaFlex and a tLogRow component onto the workspace.
2. Connect tFileInputDelimited to tJavaRow and tJavaRow to tLogRow using a Row > Main link.
3. Set the Basic settings of the tFileInputDelimited component.

   ![](https://help.qlik.com/talend/en-US/components/7.3/Resources/images/tjava_use_case3.png)
4. Double-click on tFileInputDelimited to display its Basic settings. The tFileInputDelimited reads the same text file and use the same schema as in the tJava and tJavaRow example .
5. When prompted, click OK to accept the propagation or click afterward on the Sync columns button in the tJavaRow Basic settings view.
6. Double-click on tJavaRow to display its Basic settings view. Add the following code in the Start code area:
   ```
   System.out.println("******The subJob begins to work!******");
   int nb_line=0
   ```
7. Add the following code in the Main code area:
   ```
   row2.name=(row1.name).toUpperCase();
   nb_line++;
   ```
8. Add the following code in the End code area:
   ```
   System.out.println("The total number of processed data is: "+nb_line);
   System.out.println("******The subJob finishes!******");
   ```

   Information noteNote: This code converts the column names to upper case.
9. Execute the Job by pressing F6.

## Results

![](https://help.qlik.com/talend/en-US/components/7.3/Resources/images/tjavarow_use_case1.png)