Closed Tidbit code - date and time - old and new api

[codyscott]

Demo kung kelan at kung paano ang paggamit ng Date and Time

Para sa mga older version ng Java programs or apps, use this (OLD API)

    //as is
     Date now = new Date();
     System.out.println(now);
      
     //explicit
     GregorianCalendar gc = new GregorianCalendar(2009,1,28);
     Date dl = gc.getTime();
     System.out.println(dl);
      
     //take note: older API is 0 based, meaning 0 is January, 1 is February
     gc.add(GregorianCalendar.DATE, 1);
     Date d2 = gc.getTime();
     System.out.println(d2);
    
     //formatting
     DateFormat df = DateFormat.getDateInstance(DateFormat.FULL);
     System.out.println(df.format(d2));

Ito ang bago for newer Java programs or apps (LATEST API)

     //as is
     LocalDateTime ldt = LocalDateTime.now();
     System.out.println(ldt);

     //explicit
     //take note, new API is 1 based, meaning 1 is January, 2 is February
     LocalDate ld = LocalDate.of(2009,1,28);
     System.out.println(ld);

      //formatting
     DateTimeFormatter dtf = DateTimeFormatter.ofPattern("MMMM d, uu");
     System.out.println(dtf.format(ld));

TAKE NOTE: Basahin ang documentation para alamin kung ano pa ang mga methods na puwedeng gamitin (like adding, subtracting, other formatting layout for Date and Time)

- Isang puwedeng paggamitan ay sukatin kung gaano kabilis ang execution ng inyong program. Kung ilang milliseconds (halimbawa lang).

 

[Name is not available]

Thank you bossing

 

[marleybob]

ayus sir