StdOut not recognized in Java

Question

I'm new to Java and am trying to implement some example code from a book on algorithms:

public class ThreeSum {
    public static int count(int[] a)
    {
        int N = a.length;
        int cnt = 0;
        for (int i = 0; i < N; i++)
            for (int j = i+1; j < N; j++)
                for (int k = j+1; k < N; k++)
                    if (a[i] + a[j] + a[k] == 0)
                        cnt++;
        return cnt;
    }

    public static void main(String[] args)
    {
        int[] a = In.readInts(args[0]);
        StdOut.println(count(a));
    }
}

In Netbeans 7.2, I entered this code in a New File in a New Project. However, I notice that the lines in the client program with In and StdOut are underlined with red squiggly lines and have warnings leading to suggestions to create the class (see below).

How could I get rid of these warnings? Do I have to import any libraries? Also, how could I run the main program with some example input in the Netbeans environment?

score 1 · Accepted Answer · answered Sep 06 '16 at 08:34

1

Actually its

System.out.print(count(a))

and for parsing integer use

Integer.parseInt(args[0])

I would like to suggest to go through JAVA tutorial or any beginner level java blog

http://www.tutorialspoint.com/java/

answered Sep 06 '16 at 08:34

Jekin Kalariya

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score 0 · Answer 2 · answered Sep 06 '16 at 08:35

0

To write on console command in java is :

System.out.println(count(a));

answered Sep 06 '16 at 08:35

Abhijeet

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StdOut not recognized in Java

2 Answers2