#Que ce qu un java jxl code#
The code at USES the WritableCellFormat class, which is very important because it allows you to specify the various properties of the cell, which will be described more later in the cell formatting. java-doc has a detailed list, which will not be listed here. WritableFont has a very rich list of constructors for use in different situations. Where specifies the string format: font TIMES, font size 16, bold display. Label label = new Label( 0, 0, " data 4 test " ,format1) 3. WritableCellFormat format1 = new WritableCellFormat(font1) 2.
![que ce qu un java jxl que ce qu un java jxl](https://i.stack.imgur.com/o16oy.png)
New WritableFont(WritableFont.TIMES, 16 ,WritableFont.BOLD) 1. For the convenience of description, we numbered each line of commands: Suppose we generate a cell containing a string using the following statement. The formatting of strings involves elements such as font, thickness, and font size, which are mainly handled by the WritableFont and WritableCellFormat classes. Sheet.addCell( new Label( 0, 0, " The first 2 Page of test data " )) Įxcel does not involve complex data types, and is able to handle strings, Numbers, and dates well enough to satisfy 1-like applications. WritableSheet sheet = book.createSheet( " The first 2 page ", 1 ) WritableWorkbook book = Workbook.createWorkbook( new File( " test.xls " ), Open the 1 A copy of a file and specifies that the data is written back to the original file Workbook wb = Workbook.getWorkbook( new File( " test.xls " )) The following example is to add a worksheet to the Excel file we have generated: When modifying Excel file, the operation and creation of Excel are the same except that the file is opened differently. Using jExcelAPI, you can modify the existing Excel file. Get the first 1 The column first 1 Row cell
![que ce qu un java jxl que ce qu un java jxl](http://www.poesieetessai.com/images/poeme-boris-vian_4.jpg)
For the first 1 Three worksheet objects Workbook book = Workbook.getWorkbook( new File( " test.xls " )) Take the Excel file we just created as an example to do a simple read operation. When compiled and executed, an Excel file is produced.
#Que ce qu un java jxl full#
* generate 1 A number of cells You must use the Number The full package path, otherwise there is syntactic ambiguity The cell position is number one 2 The column, the first 1 Line, the value of 789.123 Adds the defined cells to the worksheet Label label = new Label( 0, 0, " test " )
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in Label The constructor of an object indicates that the listing cell position is the first 1 The column first 1 line (0,0) WritableSheet sheet = book.createSheet( " The first 1 page ", 0 ) The generation name is "control" 1 Page "worksheet, parameters 0 That means this is number one 1 page WritableWorkbook book = Workbook.createWorkbook( new File( " test.xls " )) To generate an Excel file named "test.xls", where the first worksheet is named "", the general effect is as follows: jar, put it into classpath, and the installation is completed. It should also be noted that the API has limited support for graphs and charts and only recognizes the PNG format.
![que ce qu un java jxl que ce qu un java jxl](https://i.stack.imgur.com/i1DFB.png)
Even running under Linux, it can handle Excel files correctly.
#Que ce qu un java jxl windows#
API is pure Java and does not rely on Windows system. However, jExcelAPI supports Chinese very well. The function of POI is relatively weak 1 point. In the open source world, there are two more influential sets of API available, one is POI, the other is jExcelAPI. Jxl is a korean-written tool for java to operate excel.