以下是使用Apache Tika和Apache cTAKES进行文本处理的示例代码：

使用Apache Tika提取文本内容：

import org.apache.tika.parser.AutoDetectParser;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.parser.ParseContext;
import org.apache.tika.sax.BodyContentHandler;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;

public class TikaExample {
    public static void main(String[] args) throws Exception {
        File file = new File("path/to/file"); // 替换为实际文件路径

        InputStream stream = new FileInputStream(file);
        Metadata metadata = new Metadata();
        BodyContentHandler handler = new BodyContentHandler();
        AutoDetectParser parser = new AutoDetectParser();

        parser.parse(stream, handler, metadata, new ParseContext());

        String text = handler.toString();
        System.out.println(text);
    }
}

使用Apache cTAKES进行文本分析和实体识别：

import org.apache.ctakes.typesystem.type.syntax.BaseToken;
import org.apache.ctakes.typesystem.type.textsem.EntityMention;
import org.apache.ctakes.typesystem.type.textspan.Sentence;
import org.apache.ctakes.typesystem.type.textspan.DocumentAnnotation;

import org.apache.uima.jcas.JCas;
import org.apache.uima.fit.factory.JCasFactory;
import org.apache.uima.resource.metadata.TypeSystemDescription;
import org.apache.uima.fit.util.JCasUtil;

public class CtakesExample {
    public static void main(String[] args) throws Exception {
        String text = "This is an example sentence for cTAKES.";

        JCas jCas = JCasFactory.createJCas();
        jCas.setDocumentText(text);

        TypeSystemDescription typeSystemDescription = ...; // 替换为实际类型系统描述

        AnalysisEngineDescription analysisEngineDescription = ...; // 替换为实际分析引擎描述

        SimplePipeline.runPipeline(jCas, typeSystemDescription, analysisEngineDescription);

        DocumentAnnotation documentAnnotation = JCasUtil.selectSingle(jCas, DocumentAnnotation.class);
        System.out.println("Document ID: " + documentAnnotation.getDocumentID());

        for (Sentence sentence : JCasUtil.select(jCas, Sentence.class)) {
            System.out.println("Sentence: " + sentence.getCoveredText());

            for (BaseToken token : JCasUtil.selectCovered(jCas, BaseToken.class, sentence)) {
                System.out.println("Token: " + token.getCoveredText());
            }

            for (EntityMention entityMention : JCasUtil.selectCovered(jCas, EntityMention.class, sentence)) {
                System.out.println("Entity: " + entityMention.getCoveredText() + " (" + entityMention.getTypeID() + ")");
            }
        }
    }
}

请注意，上述代码示例中的某些部分需要替换为实际的类型系统描述和分析引擎描述。这些描述文件可从Apache cTAKES官方网站下载。