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Java The Challenge

Rafał Stasiak
Rafał Stasiak
3,763 Points
Posted by Rafał Stasiak
Rafał Stasiak
3,763 Points

jshell error

Hello Team,

Please look on below code as I try to practice more arrays. When despite the challenge I try extra task to loop cows number and assing it to cow name I receive jshell error. Please take a look on my code and correct me where I am wrong.

import java.io.Console;

public class Arrays {

public static void main(String[] args) { Console console = System.console(); String[] names = {"Bella", "Stella", "Kasia", "Asia"}; Int[] cows = {1,2,3,4};

for(Int i = 0, i < names.length, i++){
System.out.printf("The name of cow #%d is %s %n", i+1, names.indexOf(i));
}

} }

3 Answers

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,971 Points

I made the following changes:

import java.io.Console;

public class Arrays {

  public static void main(String[] args) {
    Console console = System.console();
    String[] names = {"Bella", "Stella", "Kasia", "Asia"};

    for(int i = 0; i < names.length; i++){
      System.out.printf("The name of cow #%d is %s %n", i+1, names[i]);
    } 
  }
}

1) The statements in your for loop should be separated by semicolons.

2) With names.indexOf(i) i should be a string. Instead all you need is names[i].

3) Int[] cows = {1,2,3,4}; wasn't used

agnieszkabraniszewska
PLUS
agnieszkabraniszewska
Courses Plus Student 495 Points
agnieszkabraniszewska
agnieszkabraniszewska
Courses Plus Student 495 Points

I think cause we've got class Cow.java, we should use it here.

import java.io.Console;

public class Arrays {

public static void main(String[] args) { Console console = System.console();

String[] cowNames = {"Bella", "Stella", "Kasia", "Asia"};
Cow[] cows = new Cow[cowNames.length];
for(int i = 0; i<cowNames.length; i++){
  cows[i] = new Cow(cowNames[i]);
  }
for(Cow cow : cows){
System.out.println(cow.getName());
}

} }

Rafał Stasiak
Rafał Stasiak
3,763 Points
Rafał Stasiak
Rafał Stasiak
3,763 Points

Hello Kris,

Oh! So, thats Jshell is shout about he wants a separation by semicolons!

Please clarify starting Int = 0, by upper case is correct?

Reagarding names.indexOf(i) in my example if it would work correctly? I used array "names" which contains an array of strings?

Secodnly, I understend that exaple you showed "names[i]" will prevent errors if I will use int or double the premitive type of array?