الخوارزمياتالتعامل مع المصفوفة ذات البعد الواحد - التمرين الخامس

import java.util.Scanner;
 
public class Vector {
 
    public static void main (String[] args) {
 
        Scanner input = new Scanner(System.in);
 
        int N;
        int[] vector;
 
        do
        {
            System.out.print("Enter the length of the vector: ");
            N = input.nextInt();
        }
        while ( N<= 0 );
 
        vector = new int[N];
 
        System.out.print("\n");
 
        for (int i=0; i<=N-1; i++)
        {
            System.out.print("Enter vector[" +i+ "]: " );
            vector[i] = input.nextInt();
        }
 
        System.out.print("\nBefore changing: \n");
 
        for (int i=0; i<=N-1; i++)
        {
            System.out.print("vector[" +i+ "]: " + vector[i] +"\n");
        }
 
        for (int i=0; i<=N-1; i++)
        {
            if ( vector[i] > 0 )
            {
                vector[i] = 1;
            }
            else if ( vector[i] < 0 )
            {
                vector[i] = -1;
            }
        }
 
        System.out.print("\nAfter changing: \n");
 
        for (int i=0; i<=N-1; i++)
        {
            System.out.print("vector[" +i+ "]: " + vector[i] +"\n");
        }
 
        System.out.print("\n");
 
    }
 
}