What it does?

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new Solution().method3(); Does it create a new Object? But any object need to have a reference ... Have we study it yet? googled so its the same as Solution refname = new Solution(); refname.method3(); but it runs only once and dies after?

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Guadalupe Gagnon

Level 37 , Tampa, United States

22 November 2019, 21:32

useful

That is just an object creation and calling a method on said object. Take these 2 snippets as example, which do the same exact thing:

public static void main(String[] args) {
   BufferedReader test = new BufferedReader(new InputStreamReader(System.in));

   String x = test.readLine();

   System.out.println(x);
}

public static void main(String[] args) {
   String x = new BufferedReader(new InputStreamReader(System.in)).readLine();

   System.out.println(x);
}

These two snippets are identical except that in the second one I don't create a BufferedReader variable to reuse. You can copy+paste them both in to test.