Fill values in a vector and ask for position and values

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Fill values in a vector and ask for position and values

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#1 by (1 votes)

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public class teste4 {
 Scanner op = new Scanner(System.in);
  int[] vetor = new int[10];{
  for (int i = 0; i < vetor.length; i++) {
        System.out.println("Digite o valor da posição " + i);
        vetor[i] = op.nextInt();

    }

  }

How to proceed?

java array

asked by anonymous 18.09.2014 / 01:11

1 answer

"FATAL EXCEPTION: main java.lang.NullPointerException" error in android How to insert a data table into the database?

score 1 · Answer 1

The following solution uses two loop types:

the do...while for the user to select the position of the vector that he wants to fill and then filling this value
o for "printa" the populated vector.

import java.util.Scanner;

public class teste4 {
  public static void main(String[] args) {
    Scanner op = new Scanner(System.in);
    int[] vetor = new int[10];
    int i;

    do {
      int y;

      System.out.println("Digite a posição do vetor de 0 a 9 (-1 para sair):");
      i = op.nextInt();

      if (i != -1) {
        System.out.println("Informe o valor da posição " + i + ":");
        y = op.nextInt();

        vetor[i] = y;
      }
    } while (i > -1);

    for (i = 0; i < vetor.length; i++) {
      System.out.println("Valor da posição: " + i + ": " + vetor[i]);
    }
  }
}