import java.text.ParseException;import java.text.SimpleDateFormat;import java.util.Calendar;import java.util.Date;import java.util.GregorianCalendar;public class Test { public static void main(String[] args) { Calendar cal =Calendar.getInstance(); Si
Student st1 = new Student(1, "dg", 18, new Date()); Student st2 = new Student(2, "dg", 18, new Date()); Student st3 = new Student(3, "dg", 18, new Date()); Student st4 = new Student(4, "d
1.返回消息统一定义文件CodeMsg.java public class CodeMsg { private int retCode; private String message; // 按照模块定义CodeMsg // 通用异常 public static CodeMsg SUCCESS = new CodeMsg(0,"success"); public static CodeMsg SERVER_EXCEPTION = new CodeMsg(500100,"服务端
1.有参数有返回值 public class text_1 { 1)创建add方法 public int add(int i, int j) { int res = i + j; return res; } 2)方法的调用 public static void main(String[] args) { text_1 a = new text_1();// 创建方法对象 int k = a.add(3, 4);// 用对象调用方