Java Date to obtain the implementation method of year, month, day, hour, minute and second
package com.util; import java.text.DateFormat; import java.util.Calendar; import java.util.Date; public class Test { public void getTimeByDate(){ Date date = new Date(); DateFormat df1 = DateFormat.getDateInstance();//Date format, accurate to date System.out.println(df1.format(date)); DateFormat df2 = DateFormat.getDateTimeInstance();//Can be accurate to time, minute and second System.out.println(df2.format(date)); DateFormat df3 = DateFormat.getTimeInstance();//Only display time, minute and second System.out.println(df3.format(date)); DateFormat df4 = DateFormat.getDateTimeInstance(DateFormat.FULL,DateFormat.FULL); //Show date, week, morning and afternoon, time (accurate to seconds) System.out.println(df4.format(date)); DateFormat df5 = DateFormat.getDateTimeInstance(DateFormat.LONG,DateFormat.LONG); //Show date, morning, afternoon, time (accurate to seconds) System.out.println(df5.format(date)); DateFormat df6 = DateFormat.getDateTimeInstance(DateFormat.SHORT,DateFormat.SHORT); //Show date, morning, afternoon, time (accurate to minutes) System.out.println(df6.format(date)); DateFormat df7 = DateFormat.getDateTimeInstance(DateFormat.MEDIUM,DateFormat.MEDIUM); //Show date, time (accurate to minutes) System.out.println(df7.format(date)); } public void getTimeByCalendar(){ Calendar cal = Calendar.getInstance(); int year = cal.get(Calendar.YEAR); //Get year int month=cal.get(Calendar.MONTH); //Get month int day=cal.get(Calendar.DATE); //Get day int hour=cal.get(Calendar.HOUR);//hour int minute=cal.get(Calendar.MINUTE);//minute int second=cal.get(Calendar.SECOND);//second int WeekOfYear = cal.get(Calendar.DAY_OF_WEEK);//What day of the week System.out.println("The current time is: AD"+year+"year"+month+"month"+day+"day"+hour+"time+"minute+"minute+"second+"second+"second week"+WeekOfYear); } public static void main(String[] args) { Test t=new Test(); t.getTimeByDate(); System.out.println("*********************************"); t.getTimeByCalendar(); } }Get the day, if it is greater than 16, then +2 months, otherwise +1 month, output 7 months
public static void main(String[] as) throws Exception { int j; Calendar cc = Calendar.getInstance(); int myYear = cc.get(Calendar.YEAR); int myMonth = cc.get(Calendar.MONTH); j=cc.get(Calendar.DATE)>16?3:2; cc.set(Calendar.MONTH, myMonth+j); System.out.println(myYear+"-"+cc.get(cc.MONTH)); for(int i=0;i<7;i++){ cc.add(cc.MONTH, 1); int mm = cc.get(cc.MONTH); int mmmm=mm==0?12:mm; System.out.println(myYear+"-"+mmmm); } }The above method of obtaining the year, month, day, hour, minute and second in java Date is all the content I share with you. I hope you can give you a reference and I hope you can support Wulin.com more.