Finally detailed explanation

public class test {
    
    public static void main(String[] args) {
    
        System.out.println(tryTest(8));
    }

    public static int tryTest(int i) {
    
        int result = 0;
        Integer obj = i;
        try {
    
            System.out.println(" perform try block ");
            return result;
            //return obj;
        } catch (Exception e) {
    
            //return -1;
            e.printStackTrace();
        } finally {
    // No matter whether there is any abnormality or not ||try and catch There is return,finally All the code in the block will execute 
            System.out.println("final Yes ");
            //finally Is in return After statement execution , Return to the previous execution （ The calculated value is not returned , Instead, save the value you want to return , No matter finally
                //  What about the code in , The value returned will not change , It's still a previously saved value ）, So the return value of the function is at finally It has been determined before implementation .
            System.out.println(" Reference type variable obj: " + obj + ";  Basic data type variable result: " + result);
            result = i;//finally The basic data type variable in does not change the returned content 
            obj = null;//finally The reference to type variables in does not change the returned content 
            System.out.println(" Reference type variable obj: " + obj + ";  Basic data type variable result: " + result);
            //finally If it contains return, Then the program will return here , instead of try or catch Medium return return , The return value is not try or catch The return value saved in .
            return 999;
        }
    }