А должна бы
package com.javarush.task.pro.task15.task1523;
import java.io.*;
import java.net.URL;
import java.net.URLConnection;
/*
Получение информации по API
*/
public class Solution {
public static void main(String[] args) throws IOException {
URL url = new URL("http://httpbin.org/post");
URLConnection conn = url.openConnection();
try (OutputStream output = conn.getOutputStream();) {
conn.setDoOutput(true);
output.write(1);
}
try (InputStream input = conn.getInputStream();
BufferedReader buff = new BufferedReader(new InputStreamReader(input))) {
conn.setDoOutput(false);
while (buff.ready()) {
System.out.println(buff.readLine());
}
}
//напишите тут ваш код
}
}