我正在尝试运行以下提到的代码，但出现错误

Question

package com.complete.reference;

public class shift {
        public static void main(String args[]) {
            byte a = 64, b;
            int i;
            i = a << 2;
            b = (byte) (a << 2);
            System.out.println("Original value of a: " + a);
            System.out.println("i and b: " + i + " " + b);
      }
}

Error: Main method not found in class com.complete.reference.shift, please define the main method as: public static void main(String[] args) or a JavaFX application class must extend javafx.application.Application

Answer 1

您的代码很好，请尝试用大写字母写类名，否则就可以了，可能的错误可能是您添加外部jar的方式，请尝试解决Java Build Path中的库问题。