<dependency> <groupId>org.web3j</groupId> <artifactId>core</artifactId> <version>4.8.7</version> </dependency> import org.web3j.protocol.Web3j; import org.web3j.protocol.core.DefaultBlockParameterName; import org.web3j.protocol.core.methods.response.EthBlock; import org.web3j.protocol.http.HttpService; public class Main { public static void main(String[] args) { Web3j web3j = Web3j.build(new HttpService("https://mainnet.infura.io/v3/YOUR_INFURA_API_KEY")); try { EthBlock.Block latestBlock = web3j.ethGetBlockByNumber(DefaultBlockParameterName.LATEST, false).send().getBlock(); System.out.println("Latest Block: " + latestBlock.getNumber()); } catch (Exception e) { e.printStackTrace(); } } }