ArrayList errors

Question

I have a code

 class testArrayList
{
   ArrayList<String> auto = new ArrayList<String>();

   auto.add("MITSUBISHI");
   auto.add("Hyundae");
   auto.add("Ford");
   auto.add("Ferrari");
   auto.add("Mazda");
   auto.add("Mustang");
   auto.add("Lamborghini");

   for(String cars : auto)
   {
      System.out.println(cars);
   }
}

but when I compiled it, theres an error saying

Im confused why it has an error saying IDENTIFIER EXPECTED or ILLEGAL START OF TYPE tho I already imported import java.util.ArrayList;

Anuradha · Accepted Answer · 2019-12-30 04:10:33Z

1

You have to change your code as below. You need to add array list inside to the main method.

public class testArrayList {

public static void main(String[] args) {

    ArrayList<String> auto = new ArrayList<String>();

    auto.add("MITSUBISHI");
    auto.add("Hyundae");
    auto.add("Ford");
    auto.add("Ferrari");
    auto.add("Mazda");
    auto.add("Mustang");
    auto.add("Lamborghini");

    for(String cars : auto)
    {
        System.out.println(cars);
    }
}

}

answered Dec 30, 2019 at 4:10

Anuradha

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2 Comments

sireee Over a year ago

why is that I need to put it in the main method sir?

Anuradha Over a year ago

Answer is with this question. please read. stackoverflow.com/questions/27553538/…

user12465043 · Accepted Answer · 2019-12-30 06:47:58Z

1

You can put logic ONLY inside methods. The main-method is the method that will be executed when u run the program. You can only put declarations and methods inside a class, thats why you get the runtime errors. I won't do a duplicate, just take Anuradha's solution.

answered Dec 30, 2019 at 6:47

user12465043

Comments

Hameed Syed · Accepted Answer · 2019-12-30 04:10:33Z

0

auto is not a keyword and it’s fine in java. Change theSyntax of arrayList it to something

List<String> auto= new ArrayList<>();

edited Dec 30, 2019 at 4:10

answered Dec 30, 2019 at 3:58

Hameed Syed

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6 Comments

Hameed Syed Over a year ago

Did you change that everywhere ?

sireee Over a year ago

but when I put it in main class the error gone why is that?

Hameed Syed Over a year ago

Try this List<String> autoList = new ArrayList<>() , This should work normally in main or any where .

sireee Over a year ago

why is that sir when I put it in main the error is gone? but if it is in another class there is an error?

Hameed Syed Over a year ago

Can you confirm the above syntax by putting in normal place where you tried?

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