Exception in getting characters into char array

Question

Getting NPE while using getChars method.

Code

public class GetCharsDemo {
    public static void main(String[] args) {

        String temp = "Some string!";
        int from = 5;
        int to = 9;
        char[] store = null;

        temp.getChars(from, to, store, 1);

        System.out.println("Character array - " + store[0]
            + store[1] + store[2] + store[3]);
        
        //System.out.println(temp.substring(from));

    }

Output -

Exception in thread "main" java.lang.NullPointerException
    at java.lang.System.arraycopy(Native Method)
    at java.lang.String.getChars(Unknown Source)
    at com.dataTypes.GetCharsDemo.main(GetCharsDemo.java:11)

Values should store to char array named store.

Please help here.

Answer 1

You have declared char, but you have not defined it.

You need to use

 char[] store =new char[4];