孟昊的定义 4-5 public class ClassNameRunner public static void main(String[]args) Statements to construct a program object and ask it to perform computations ] Stored in a file called ClassNameRunner.java Programming in Java JAVA4-5 Programming in Java public class { public static void main(String[] args) { } } 主类的定义 ClassNameRunner Statements to construct a program object and ask it to perform computations Stored in a file called ClassNameRunner.java