Novice, how to change the path of compiling and running java, in sublime

problem description

after I ctrl+b, I reported an error. Dir is the path of the previous python file

the platform version of the problem and what methods you have tried

related codes

/ / Please paste the code text below (do not replace the code with pictures)
public class helloworld {

public static void main(String[] args){
    System.out.println("Hello world!");
}

}

what result do you expect? What is the error message actually seen?

I want to compile and run java directly in sublime

Jun.11,2021
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