Question 176448 in Visual Studio Code Question posted in
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Does VSC’s Queue not resolve types?

I’m learning Java in VSC and found odd issue when playing around with Queues.
Below code throws cannot be resolved to a type error when trying to use static variable.

Java I’m using:

java 15 2020-09-15
Java(TM) SE Runtime Environment (build 15+36-1562)
Java HotSpot(TM) 64-Bit Server VM (build 15+36-1562, mixed mode, sharing)

Thanks for help!

import java.util.LinkedList;
import java.util.Queue;

public class theQueue {
    public static void main(String[] args) {
        Queue<recordForHuman> market = new LinkedList<>();
        market.add(new recordForHuman("Alex", 21));
    }

    //'record' is not a valid type name; it is a restricted identifier and not allowed as a type identifier in Java 15
    //static record Human(String name, int age){}

    //recordForHuman cannot be resolved to a type
    static recordForHuman Human(String name, int age){}
}
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2

Answers


  1. 0

    That is not a static variable deceleration. It seems to define a static method called Human that returns a recordForHuman. There is no declaration of a class or interface recordForHuman in the code shared so we don’t know what that is. Note that by Java naming convention a type should start with an uppercase letter and a method with a lower case letter.

    record is a reserved word since Java 14 so you can not use it for any identifier.

    To fix the error create a type with a proper name and use it.

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  2. 0

    If the static Human() is supposed to be a variable, then you need to make an instance like you did with the queue, Human h = new Human(), if it’s supposed to be a method, then you need to either create a recordForHuman class for the method to return.

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