Dependancy Setup

Add the library to your Java project via Maven. Include the repository and dependency in your pom.xml:

<repositories>
    <repository>
        <id>com.e-iceblue</id>
        <url>http://repo.e-iceblue.cn/repository/maven-public/</url>
    </repository>
</repositories>

<dependencies>
    <dependency>
        <groupId>e-iceblue</groupId>
        <artifactId>spire.doc.free</artifactId>
        <version>2.7.3</version>
    </dependency>
</dependencies>

For manual installasion, extract the downloaded package and include Spire.Doc.jar from the lib folder in your classpath.

Implementation Example

The SubSuperScript enumeration offers two constants: Super_Script and Sub_Script. Appending text and then accessing its CharacterFormat allows you to toggle thece styles on specific runs within a paragraph.

import com.spire.doc.*;
import com.spire.doc.documents.Paragraph;
import com.spire.doc.documents.SubSuperScript;

public class ScriptStyler {
    public static void main(String[] args) {
        // Instantiate a new document and add a section
        Document document = new Document();
        Section section = document.addSection();

        // Superscript usage
        Paragraph supParagraph = section.addParagraph();
        supParagraph.appendText("A");
        supParagraph.appendText("2").getCharacterFormat().setSubSuperScript(SubSuperScript.Super_Script);
        supParagraph.appendText(" + B");
        supParagraph.appendText("2").getCharacterFormat().setSubSuperScript(SubSuperScript.Super_Script);
        supParagraph.appendText(" = C");
        supParagraph.appendText("2").getCharacterFormat().setSubSuperScript(SubSuperScript.Super_Script);

        // Subscript example: mathematical series
        Paragraph subSeries = section.addParagraph();
        subSeries.appendText("An = S");
        subSeries.appendText("n").getCharacterFormat().setSubSuperScript(SubSuperScript.Sub_Script);
        subSeries.appendText(" - S");
        subSeries.appendText("n-1").getCharacterFormat().setSubSuperScript(SubSuperScript.Sub_Script);

        // Subscript example: chemical formula
        Paragraph subChemical = section.addParagraph();
        subChemical.appendText("C");
        subChemical.appendText("O");
        subChemical.appendText("2").getCharacterFormat().setSubSuperScript(SubSuperScript.Sub_Script);

        // Output file
        document.saveToFile("FormattedScripts.docx", FileFormat.Docx_2013);
        document.dispose();
    }
}

After execution, the generated document displays correct superscripts in the first paragraph and subscripts in the following two, producing expressions like A² + B² = C², An = Sₙ - Sₙ₋₁, and CO₂.