非常基本 - Java 数组作为类变量

Question

提问by animeman420

class Foo{
     int[] doop;

     public Foo(){
          this.doop={1,2,3,4,5};
     }
}

I can't compile this, Java ME SDK gives me a bunch of "Illegal Start of Expression" errors. Why? How do I make this work?

我无法编译这个，Java ME SDK 给了我一堆“非法的表达式开始”错误。为什么？我如何使这项工作？

Answer 1

Try this:

试试这个：

this.doop= new int[]{1,2,3,4,5};

Answer 2

You can't do this in constructor, because this syntax is allowed only for declaration with initialization. Fix to this:

您不能在构造函数中执行此操作，因为此语法仅允许用于带有初始化的声明。修复这个：

class Foo{
     int[] doop = new int[]{1,2,3,4,5};

     public Foo(){

     }
}

Answer 3

class Foo{
     int[] doop;

     public Foo(){
          this.doop= new int[]{1,2,3,4,5};
     }
}