Step 1 : Add This Code into bulid.gradle and Change the version Accordingly

plugins {
    id 'java'
    id 'idea'
    id 'com.google.protobuf' version '0.9.4'
}
group = 'org.example.com'
version = '1.0-SNAPSHOT'
repositories {
    mavenCentral()
}
protobuf {
    protoc {
        artifact = "com.google.protobuf:protoc:3.25.5"
    }
    plugins {
        grpc {
            artifact = 'io.grpc:protoc-gen-grpc-java:1.70.0'
        }
    }
    generateProtoTasks {
        all()*.plugins {
            grpc {}
        }
    }
}
sourceSets.main.java.srcDir new File(buildDir, 'generated/source')
dependencies {
    runtimeOnly 'io.grpc:grpc-netty-shaded:1.70.0'
    implementation 'io.grpc:grpc-protobuf:1.70.0'
    implementation 'io.grpc:grpc-stub:1.70.0'
    compileOnly 'org.apache.tomcat:annotations-api:6.0.53' // necessary for Java 9+
    testImplementation platform('org.junit:junit-bom:5.10.0')
    testImplementation 'org.junit.jupiter:junit-jupiter'
}
test {
    useJUnitPlatform()
}

Step 2 : Save and Build the project using gradle icon

Step 3 : Add a package to src/main package name is proto

syntax ='proto3';
package dummy;
option java_package='com.proto.dummy';
option java_multiple_files= true;
message Dummymessage{
}
service Dummyservice{}

Step 4 : Add Another package with name greeting.server in src/main/java

Step 5 : Create a java file name GreetingServer

package greeting.server;
import io.grpc.Server;
import io.grpc.ServerBuilder;
import java.io.IOException;
public class GreetingServer {
    public static void main(String[] args) throws IOException, InterruptedException {
        int port =50051;
        Server server = ServerBuilder.forPort(port).build();
        server.start();
        System.out.println("Server started");
        System.out.println("listening to port"+ port);
        Runtime.getRuntime().addShutdownHook(new Thread(() -> {
            System.out.println("received shutdown request");
            server.shutdown();
            System.out.println("Server Stopped");
        }));
        server.awaitTermination();
    }
}