What is wrong in my solution?

Question about the task

Static modifiers and kittens

Java Core, Level 5, Lesson 9

Resolved

This task should be so easy, so who can tell me what is wrong?

1. In the Solution class, create a Cat class with a public String field name.
2. In the static block, create a Cat object and assign it to the variable cat (don't forget to initialize the field name).
3. In the Cat class, don't create constructors with parameters.
4. In the static block, display the created cat's name on the screen.

Requirements:

The Cat class must be inside the Solution class and must be public and static.
The Cat class must have a public String field name.
The variable cat must be initialized in the static block of the Solution class.
In the static block, the created cat's name should be displayed on the screen.
The Cat class must not have constructors with parameters.

package com.codegym.task.task15.task1518; /* Static modifiers and kittens */ public class Solution { static { Cat cat = new Cat(); cat.name="rufus"; System.out.println(cat.name); } public static class Cat { public String name; } public static void main(String[] args) { } }

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PGT

Level 23 , Warsaw, Poland

24 August 2020, 12:18

In Solution class you are supposed to have public static Cat cat variable, so it should look more or less like this:

public class Solution {
    public static Cat cat;

    static {
        cat = new Cat();
        cat.name = "rufus";

        System.out.println(cat.name);
    }

    // The rest of code
}

In static block you were supposed to just initialize the variable cat a new cat object. :)

Nouser

Level 36 , Germany

24 August 2020, 11:21

solution

What's the use of a cat that's visible just inside the static block?

Misiu

Level 41 , Gdansk, Poland

24 August 2020, 16:10

Conditions were (yes, in some way hidden): 1. There is a variable "cat". 2. In static block initialize this variable.

Nouser

Level 36 , Germany

24 August 2020, 17:13

Nothing about declaring the variable in the staic block?

Misiu

Level 41 , Gdansk, Poland

24 August 2020, 19:17

Nothing. The line: "public static Cat cat;" was (is) in template of the task. Marek has removed it.

Nouser

Level 36 , Germany

25 August 2020, 07:44

Ahh, OK, thanks. So an avoidable but interesting problem. One can learn a lot from that.