Вроде все норм, не понимаю в чем причина
package com.javarush.task.task15.task1527;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.Arrays;
import java.util.Map;
import java.util.stream.Collectors;
/*
Парсер реквестов
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
URL url = new URL(reader.readLine());
Map<String, String> params = Arrays.stream(url.getQuery().split("&"))
.map(str -> str.split("="))
.collect(Collectors.toMap(
arr -> arr[0],
arr -> {
try {
return arr[1];
} catch (ArrayIndexOutOfBoundsException e) {
return "";
}
}));
System.out.println(params.keySet().stream()
.reduce((s1, s2) -> s1 + " " + s2)
.get());
String obj = params.get("obj");
if (obj != null && !obj.isEmpty()) {
try {
alert(Double.parseDouble(obj));
} catch (NumberFormatException e) {
alert(obj);
}
}
}
public static void alert(double value) {
System.out.println("double: " + value);
}
public static void alert(String value) {
System.out.println("String: " + value);
}
}