HelloWorld.java:1: error: class HellWorld is public, should be declared in a file named HellWorld.java public class HellWorld{ ^ 1 error
HelloWorld.java:1:?error:?class?HellWorld?is?public,?should?be?declared?in?a?file?named?HellWorld.java public?class?HellWorld{ ???????^ 1?error
2025-08-07
HelloWorld o少了