access array[i] outside of a method context; not possible?

This code compiles without error:

Code:

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public class hello {
 public static void main(String[] args){
  int[] vector = new int[10];
  vector[0]=3;
 }
}

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Whereas this code does not compile and generates several errors:

Code:

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public class hello {
 int[] vector = new int[10];
 vector[0]=3;
 public static void main(String[] args){
 }
}

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The errors i get are just like this one:

Code:

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>./hello.java:3: error: ']' expected
>vector[0]=3;
>      ^

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So i feel tempted to conclude that an expression of the form array[i] outside of any method context is illegal?

oh i just remembered that with a static initialization block it would work:

Code:

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public class hello {
 static {
  int[] vector = new int[10];
  vector[0]=3;
 }
 public static void main(String[] args){
 }
}

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so i guess have to reformulate my question as outside of any static initialization block and outside of any method, in general are expressions like array[i]=x illegal?

Quote:

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so i guess have to reformulate my question as outside of any static initialization block and outside of any method, in general are expressions like array[i]=x illegal?

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Basically yes, although there are also instance initializer blocks which you can do this in. The only time you can assign values to an array outside a method or initializer is if you do it at declaration ie

Code:

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String s = new String[]{"a", "b", "c"};

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Quote:

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Originally Posted by keang

Basically yes, although there are also instance initializer blocks which you can do this in. The only time you can assign values to an array outside a method or initializer is if you do it at declaration ie

Code:

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String s = new String[]{"a", "b", "c"};

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thanks for confirmation!