StatusCode.java

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpDelete;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.HttpClientBuilder;

import java.io.IOException;
import java.io.InputStream;

/**
 * @author Chathura Widanage
 */
public class TestDNMS {
    public static void main(String[] args) throws IOException {
        HttpClient httpClient= HttpClientBuilder.create().build();

        HttpDelete del=new HttpDelete("{Server}/api/trackedEntityInstances/pP5qtx4L5Pa");
        del.setHeader("Authorization","Basic {Auth}");

        HttpResponse delResponse = httpClient.execute(del);


        try{
            HttpEntity entity = delResponse.getEntity();
            System.out.print("Entitiy : ");
            System.out.println(entity);
            InputStream content = entity.getContent();
            System.out.println(content);
        }catch (NullPointerException nex){
            System.out.println("Null pointer Exception");
        }

        int delStatusCode=delResponse.getStatusLine().getStatusCode();

        System.out.println(delStatusCode);

        if(delStatusCode==204){
            System.out.println("tei deleted");
        }else{
            System.out.println("tei not deleted");
        }

    }
}