Wednesday, 29 July 2020

Insert, Hide and Delete Excel Rows and Columns in Java

If you need to add new data or delete existing data in an Excel worksheet, you can insert or delete rows or columns in the worksheet. Besides, you will have a cleaner spreadsheet without deleting data you might need later by hiding rows and columns. In this article, I’ll show you how to insert, hide and delete Excel rows and columns by using Free Spire.XLS for Java.

ADD JAR TO PROJECT

Download the latest version of Free Spire.XLS forJava, unzip it and add Spire.Xls.jar located in the “lib” folder to your Java project as a dependency.

Of course, if you are using maven, you need to add the following code to your project’s pom.xml file.

<repositories>  
        <repository>  
            <id>com.e-iceblue</id>  
            <name>e-iceblue</name>  
            <url>http://repo.e-iceblue.com/nexus/content/groups/public/</url>  
        </repository>  
</repositories>  
<dependencies>  
    <dependency>  
        <groupId>e-iceblue</groupId>  
        <artifactId>spire.xls.free</artifactId>  
        <version>2.2.0</version>  
    </dependency>  
</dependencies>

Using the code

 1. Insert Rows and Columns in Excel

By using the InsertRow and InsertColumn methods, we can insert one or several rows and columns in Excel workbook. Below are the code snippets.

import com.spire.xls.*;

public class AddRowsAndColumns {
public static void main(String[] args) {
//Load the sample Excel file
Workbook workbook = new Workbook();
workbook.loadFromFile("C:\\Users\\Test1\\Desktop\\Sample.xlsx");

//Get the first worksheet
Worksheet worksheet = workbook.getWorksheets().get(0);

//Insert a row into the worksheet.
worksheet.insertRow(2);

//Insert a column into the worksheet.
worksheet.insertColumn(2);

//Insert multiple rows into the worksheet.
worksheet.insertRow(5, 2);

//Insert multiple columns into the worksheet.
worksheet.insertColumn(5, 2);
//Save to file.
workbook.saveToFile("output/InsertRowsAndColumns.xlsx", ExcelVersion.Version2013);
}
}

Effective screenshot after inserting the empty rows and columns:



2.Hide Rows and Columns in Java

import com.spire.xls.*;

public class HideRowsAndColumns {
public static void main(String[] args) {
//Load the sample Excel file
Workbook workbook = new Workbook();
workbook.loadFromFile(
"C:\\Users\\Test1\\Desktop\\InsertRowsAndColumns.xlsx");

//Get the first worksheet
Worksheet worksheet = workbook.getWorksheets().get(0);

//Hide the column of the worksheet.
worksheet.hideColumn(2);

//Hide the row of the worksheet
worksheet.hideRow(3);

//Save to file.
workbook.saveToFile("output/HideRowAndColumn.xlsx", ExcelVersion.Version2013);
}
}

Effective screenshot after hiding the second column and the third row:


3. Delete Rows and Columns in Excel


import com.spire.xls.*;

public class DeleteRowsAndColumns {
public static void main(String[] args) {
//Load the sample Excel file
Workbook workbook = new Workbook();
workbook.loadFromFile("C:\\Users\\Test1\\Desktop\\InsertRowsAndColumns.xlsx");

//Get the first worksheet
Worksheet worksheet = workbook.getWorksheets().get(0);

//Delete a row from the worksheet.
worksheet.deleteRow(2);

//Delete multiple columns from the worksheet.
worksheet.deleteColumn(5, 2);

//Save to file.
workbook.saveToFile("output/DeleteRowAndColumn.xlsx", ExcelVersion.Version2013);
}
}

Effective screenshot after deleting the second row and the fifth and sixth columns:


Tuesday, 21 July 2020

Add Shapes to PowerPoint in Java

Shapes in PowerPoint can be used to add interest to any presentation, emphasize a point or create custom graphics based on your requirement. Generally, shapes used in PowerPoint are circles, rectangles, squares, pentagons and so on. Furthermore, individual shapes can be merged in to other complex shapes. Let’s take a look at how to add individual shapes or group shapes to PowerPoint by using Free Spire.Presentation for Java.

ADD SPIRE.PRESENTATION.JAR AS 

DEPENDENCY

Download the latest version of Free Spire.Presentation for Java from the link, unzip it and add Spire.Presentation.jar located in the “lib” folder to your Java IDEA.

Of course, if you are creating a Maven project, you can easily add the jar dependency by adding the following configurations to the pom.xml.

<repositories>

        <repository>

            <id>com.e-iceblue</id>

            <name>e-iceblue</name>

            <url>http://repo.e-iceblue.com/nexus/content/groups/public/</url>

        </repository>

</repositories>

<dependencies>

    <dependency>

        <groupId> e-iceblue </groupId>

        <artifactId>spire.presentation</artifactId>

        <version>3.5.4/version>

    </dependency>

</dependencies>

 

Using the code

Sample 1 Add Shapes

import com.spire.presentation.*;
import com.spire.presentation.drawing.*;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;

public class AddShape {
   
public static void main(String[] args) throws Exception{
       
//create a PowerPoint document
       
Presentation presentation = new Presentation();

       
//append a Triangle and fill the shape with a solid color
       
IAutoShape shape = presentation.getSlides().get(0).getShapes().appendShape(ShapeType.TRIANGLE, new Rectangle2D.Double(115, 130, 100, 100));
        shape.getFill().setFillType(FillFormatType.
SOLID);
        shape.getFill().getSolidColor().setColor(Color.
orange);
        shape.getShapeStyle().getLineColor().setColor(Color.
white);

       
//append an Ellipse and fill the shape with a picture
       
shape = presentation.getSlides().get(0).getShapes().appendShape(ShapeType.ELLIPSE, new Rectangle2D.Double(290, 130, 150, 100));
        shape.getFill().setFillType(FillFormatType.
PICTURE);
        shape.getFill().getPictureFill().setFillType(PictureFillType.
STRETCH);
        BufferedImage image = ImageIO.read(
new File("C:\\Users\\Test1\\Desktop\\Image.jpg"));
        shape.getFill().getPictureFill().getPicture().setEmbedImage(presentation.getImages().append(image));
        shape.getShapeStyle().getLineColor().setColor(Color.
white);

       
//append a Heart and fill the shape with a pattern
       
shape = presentation.getSlides().get(0).getShapes().appendShape(ShapeType.HEART, new Rectangle2D.Double(515, 130, 130, 100));
        shape.getFill().setFillType(FillFormatType.
PATTERN);
        shape.getFill().getPattern().setPatternType(PatternFillType.
CROSS);
        shape.getShapeStyle().getLineColor().setColor(Color.
white);

       
//append a Five-Pointed Star and fill the shape with a gradient color
       
shape = presentation.getSlides().get(0).getShapes().appendShape(ShapeType.FIVE_POINTED_STAR, new Rectangle2D.Double(115, 300, 100, 100));
        shape.getFill().setFillType(FillFormatType.
GRADIENT);
        shape.getFill().getGradient().getGradientStops().append(
0, KnownColors.BLACK);
        shape.getShapeStyle().getLineColor().setColor(Color.
white);

       
//append a Rectangle and fill the shape with gradient color
       
shape = presentation.getSlides().get(0).getShapes().appendShape(ShapeType.RECTANGLE, new Rectangle2D.Double(290, 300, 150, 100));
        shape.getFill().setFillType(FillFormatType.
GRADIENT);
        shape.getFill().getGradient().getGradientStops().append(
0, KnownColors.LIGHT_SKY_BLUE);
        shape.getFill().getGradient().getGradientStops().append(
1, KnownColors.ROYAL_BLUE);
        shape.getShapeStyle().getLineColor().setColor(Color.
white);

       
//append a Bent Up Arrow and fill the shape with gradient color
       
shape = presentation.getSlides().get(0).getShapes().appendShape(ShapeType.BENT_UP_ARROW, new Rectangle2D.Double(515, 300, 130, 100));
        shape.getFill().setFillType(FillFormatType.
GRADIENT);
        shape.getFill().getGradient().getGradientStops().append(
1f, KnownColors.OLIVE);
        shape.getFill().getGradient().getGradientStops().append(
0, KnownColors.POWDER_BLUE);
        shape.getShapeStyle().getLineColor().setColor(Color.
white);

        
//save the document
       
presentation.saveToFile("output/AddShapes.pptx", FileFormat.PPTX_2010);
    }
}

Output

Sample 2 Add Group shapes

import com.spire.presentation.*;
import com.spire.presentation.drawing.FillFormatType;
import java.awt.geom.Rectangle2D;
import java.util.ArrayList;

public class GroupShape {
   
public static void main(String[] args) throws Exception{
       
//create a PowerPoint document
       
Presentation ppt = new Presentation();
       
//get the first slide
       
ISlide slide = ppt.getSlides().get(0);

       
//add a rectangle shape to the slide
       
IShape rectangle = slide.getShapes().appendShape(ShapeType.RECTANGLE, new Rectangle2D.Double(20,100,200,40));
        rectangle.getFill().setFillType(FillFormatType.
SOLID);
        rectangle.getFill().getSolidColor().setKnownColor(KnownColors.
GOLD);
        rectangle.getLine().setWidth(
0.1f);

       
//add a ribbon shape to the slide
       
IShape ribbon = slide.getShapes().appendShape(ShapeType.RIBBON_2, new Rectangle2D.Double(60, 75, 120, 80));
        ribbon.getFill().setFillType(FillFormatType.
SOLID);
        ribbon.getFill().getSolidColor().setKnownColor(KnownColors.
PURPLE);
        ribbon.getLine().setWidth(
0.1f);

       
//add the shapes to a list
       
ArrayList list = new ArrayList();
        list.add((Shape)rectangle);
        list.add((Shape)ribbon);

       
//group the shapes
       
ppt.getSlides().get(0).groupShapes(list);

       
//save the resultant document
       
ppt.saveToFile("output/GroupShapes.pptx", FileFormat.PPTX_2013);
    }
}

Output















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