calendar.java

来自「一个优秀的供应商管理系统」· Java 代码 · 共 120 行

package apusic.myshop.util;



import java.util.Date;

/**
 * This class represents a calender
 */
public class Calendar extends Object implements java.io.Serializable{

  public static final int MONTH = java.util.Calendar.MONTH;
  public static final int DATE = java.util.Calendar.DATE;
  public static final int YEAR = java.util.Calendar.YEAR;

  private int month;
  private int day;
  private int year;

  private Calendar(int year, int month, int day){
    this.month = month;
    this.day= day;
    this.year = year;
  }

  public static Calendar getInstance(){
    java.util.Calendar c = java.util.Calendar.getInstance();
    int m = c.get(java.util.Calendar.MONTH);
    int d = c.get(java.util.Calendar.DATE);
    int y = c.get(java.util.Calendar.YEAR);
    return new Calendar(y,m,d);
  }

  public int getMonth(){
    return month;
  }

  public int getDay(){
    return day;
  }

  public int getYear(){
    return year;
  }

  public void set(int year, int month, int day){
    this.month = month;
    this.day = day;
    this.year = year;
  }

  public void set(int target, int value){
    switch (target){
      case java.util.Calendar.MONTH :
        this.month = value;
        break;
	    case java.util.Calendar.YEAR :
    		this.year = value;
		    break;
	    case java.util.Calendar.DATE :
    		this.day = value;
		    break;
    }
  }

  public Date getTime(){
    //return new Date(year, month, day);
    java.util.Calendar c = java.util.Calendar.getInstance();
    c.set(java.util.Calendar.YEAR, year);
    c.set(java.util.Calendar.MONTH, month);
    c.set(java.util.Calendar.DATE, day);
    return c.getTime();
  }

  public int get(int target){
    switch (target){
	    case java.util.Calendar.MONTH : return this.month;
	    case java.util.Calendar.YEAR : return this.year;
	    case java.util.Calendar.DATE : return this.day;
	    default: return -1;
	  }
  }

  public void setTime(java.util.Date date){
	  java.util.Calendar c = java.util.Calendar.getInstance();
  	c.setTime(date);
	  this.day = c.get(java.util.Calendar.DATE);
  	this.month = c.get(java.util.Calendar.MONTH);
	  this.year = c.get(java.util.Calendar.YEAR);
  }

  public void clear(){
	  this.day = -1;
  	this.month = -1;
	  this.year = -1;
  }

   /**
    * @return the date encoded in the format  mm/yyyy
    */
    public String getExpiryDateString(){
	    return ((month > 10)? "0" : "") + month + "/" + ((year > 10)? "0" : "") + year;
    }

   /**
    * @return the date encoded in the format  mm/dd/yyyy
    */
    public String getFullDateString(){
    	return ((month + 1 < 10)? "0" : "") + (month + 1) + "/" + ((day < 10)? "0" : "") + day + "/" + ((year < 10)? "0" : "") + year;
    }

    public String toString(){
	    return "[Year=" + year + ", Month=" + month + ", Day=" + day + "]";
    }

    public String getCloudscapeDateString(){
	    return year + "-" + ((month + 1 < 10)? "0" : "") + (month + 1) + "-" + ((day < 10)? "0" : "") + day;
    }
}