Added java sample for text generation

Author: anandmali

.gitignore

@@ -1,2 +1,4 @@
 .vscode
 node_modules
+java/target
+.idea

.idea/.gitignore

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+package org.google.gemini;
+
+public class BuildConfig {
+    public static String media_path = "third_party/";
+}

.idea/api-examples-anandct.iml

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+/*
+ * Copyright 2025 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.google.gemini;
+
+import com.google.common.collect.ImmutableList;
+import com.google.genai.Client;
+import com.google.genai.types.*;
+import org.apache.http.HttpException;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Base64;
+
+import static org.google.gemini.BuildConfig.media_path;
+
+public class TextGenMultimodalOneImagePrompt {
+    public static void main(String[] args) throws IOException, HttpException {
+        // [START text_gen_multimodal_one_image_prompt]
+        Client client = new Client();
+
+        String path = media_path + "organ.jpg";
+        byte[] imageData = Files.readAllBytes(Paths.get(path));
+        String base64Image = Base64.getEncoder().encodeToString(imageData);
+        Part imagePart = Part.builder()
+                .inlineData(Blob.builder().data(base64Image)
+                        .mimeType("image/jpeg").build()).build();
+
+        Part textPart = Part.builder().text("Tell me about this instrument").build();
+
+        Content content = Content.builder().role("user").parts(ImmutableList.of(textPart, imagePart)).build();
+
+        GenerateContentResponse response = client.models.generateContent("gemini-2.0-flash", content, null);
+
+        System.out.println(response.text());
+        // [END text_gen_multimodal_one_image_prompt]
+    }
+}

.idea/compiler.xml

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+package org.google.gemini;
+
+import com.google.common.collect.ImmutableList;
+import com.google.genai.Client;
+import com.google.genai.ResponseStream;
+import com.google.genai.types.Blob;
+import com.google.genai.types.Content;
+import com.google.genai.types.GenerateContentResponse;
+import com.google.genai.types.Part;
+import org.apache.http.HttpException;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Base64;
+
+import static org.google.gemini.BuildConfig.media_path;
+
+public class TextGenMultimodalOneImagePromptStreaming {
+    public static void main(String[] args) throws IOException, HttpException {
+        // [START text_gen_multimodal_one_image_prompt_streaming]
+        Client client = new Client();
+
+        String path = media_path + "organ.jpg";
+        byte[] imageData = Files.readAllBytes(Paths.get(path));
+        String base64Image = Base64.getEncoder().encodeToString(imageData);
+        Part imagePart = Part.builder()
+                .inlineData(Blob.builder().data(base64Image)
+                        .mimeType("image/jpeg").build()).build();
+
+        Part textPart = Part.builder().text("Tell me about this instrument").build();
+
+        Content content = Content.builder().role("user").parts(ImmutableList.of(textPart, imagePart)).build();
+
+        ResponseStream<GenerateContentResponse> responseStream =
+                client.models.generateContentStream(
+                        "gemini-2.0-flash",
+                        content,
+                        null);
+
+        for (GenerateContentResponse res : responseStream) {
+            System.out.print(res.text());
+        }
+
+        responseStream.close();
+        // [END text_gen_multimodal_one_image_prompt_streaming]
+    }
+}

.idea/encodings.xml

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+/*
+ * Copyright 2025 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.google.gemini;
+
+import com.google.genai.Client;
+import com.google.genai.types.GenerateContentResponse;
+import org.apache.http.HttpException;
+
+import java.io.IOException;
+
+public class TextGenerationOnlyPrompt {
+    public static void main(String[] args) throws IOException, HttpException {
+        // [START text_gen_text_only_prompt]
+        Client client = new Client();
+
+        GenerateContentResponse response =
+                client.models.generateContent(
+                        "gemini-2.0-flash",
+                        "Write a story about a magic backpack.",
+                        null);
+
+        System.out.println(response.text());
+        // [END text_gen_text_only_prompt]
+    }
+}

.idea/jarRepositories.xml

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+/*
+ * Copyright 2025 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.google.gemini;
+
+import com.google.genai.Client;
+import com.google.genai.ResponseStream;
+import com.google.genai.types.GenerateContentResponse;
+import org.apache.http.HttpException;
+
+import java.io.IOException;
+
+public class TextGenerationOnlyPromptStreaming {
+    public static void main(String[] args) throws IOException, HttpException {
+        // [START text_gen_text_only_prompt_streaming]
+        Client client = new Client();
+
+        ResponseStream<GenerateContentResponse> responseStream =
+                client.models.generateContentStream(
+                        "gemini-2.0-flash",
+                        "Write a story about a magic backpack.",
+                        null);
+
+        for (GenerateContentResponse res : responseStream) {
+            System.out.print(res.text());
+        }
+
+        responseStream.close();
+        // [END text_gen_text_only_prompt_streaming]
+    }
+
+}

.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.google.gemini</groupId>
+    <artifactId>java</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>24</maven.compiler.source>
+        <maven.compiler.target>24</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.google.genai</groupId>
+            <artifactId>google-genai</artifactId>
+            <version>0.2.0</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-war-plugin</artifactId>
+                <version>3.4.0</version>
+            </plugin>
+        </plugins>
+        <resources>
+            <resource>
+                <directory>java/src/main/resources</directory>
+                <includes>
+                    <include>.env</include>
+                </includes>
+            </resource>
+        </resources>
+    </build>
+
+</project>