Почему он выдает java.lang.NullPointerException
at com.javarush.task.task08.task0822.Solution.getIntegerList(Solution.java:38)
at com.javarush.task.task08.task0822.Solution.main(Solution.java:16)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
package com.javarush.task.task08.task0822;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
/*
Минимальное из N чисел
*/
public class Solution {
public static void main(String[] args) throws Exception {
List<Integer> integerList = getIntegerList();
System.out.println(getMinimum(integerList));
}
public static int getMinimum(List<Integer> array) {
int min=0;
for(Integer a:array){
min = a;
for(Integer b:array){
if(a>b){
min = b;
}
}
}
return min;
}
public static List<Integer> getIntegerList() throws IOException {
BufferedReader r = new BufferedReader(new InputStreamReader(System.in));
LinkedList<Integer> list = new LinkedList<Integer>();
while(true){
String a=r.readLine();
if(a.length()==0){
break;
}
list.add(Integer.parseInt(a));
}
return list;
}
}