I am trying to upload file in website using javacode, writing below java code, need help for uploading file - http

Question

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.message.BasicNameValuePair;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
public class LoginExample {
public static void main(String[] args) throws Exception {
HttpClient client = HttpClientBuilder.create().build();
HttpPost post = new HttpPost("https://www.example.com/login");
List<NameValuePair> urlParameters = new ArrayList<>();
urlParameters.add(new BasicNameValuePair("username", "user"));
urlParameters.add(new BasicNameValuePair("password", "pass"));
post.setEntity(new UrlEncodedFormEntity(urlParameters));
HttpResponse response = client.execute(post);
BufferedReader rd = new BufferedReader(
new InputStreamReader(response.getEntity().getContent()));
StringBuilder result = new StringBuilder();
String line;
while ((line = rd.readLine()) != null) {
result.append(line);
}
System.out.println(result);
HttpGet get = new HttpGet("https://www.example.com/home");
response = client.execute(get);
rd = new BufferedReader(
new InputStreamReader(response.getEntity().getContent()));
result = new StringBuilder();
while ((line = rd.readLine()) != null) {
result.append(line);
}
System.out.println(result);
}
}
This is the code tried
How to upload file in weppage using java, need code sample which can be added to above code so that upload can be done thru java
Also any other alternative solution is there for handling thru java
I am trying to eliminate going thru UI steps and want to handle thru java code