import CodeBlock from "@theme/CodeBlock";
import java_examples from "!!raw-loader!../../../../../bindings/java/examples/java-app/src/main/java/org/iota/client/example/ExampleApp.java";
const javaFunctionName = "public static void mqtt",
  indexStart = java_examples.indexOf(javaFunctionName);
const nextJavaFunctionName = "public static void consolidate",
  indexEnd = java_examples.indexOf(nextJavaFunctionName);
const transaction = java_examples.substring(indexStart, indexEnd);

<CodeBlock className="language-java">{transaction}</CodeBlock>