练习学习与收集（Calendar、GregorianCalendar）

（四）Calendar
package one;
import java.util.*;
public class CalendarTest {
public static void main(String[] args) {
byte s=(byte)Integer.parseInt("01010101",2);

Calendar date=new GregorianCalendar(2007,9,16);
System.out.println(date.get(Calendar.YEAR));
System.out.println(date.get(Calendar.MONTH)+1);
System.out.println(date.get(Calendar.DAY_OF_MONTH));
System.out.println(date.get(Calendar.DAY_OF_WEEK));
int week=date.get(Calendar.DAY_OF_WEEK)-1;

if(((1<<week)&s)!=0){
System.out.println("有航班！");
}else{
System.out.println("无航班！");
}
}

}
（五）GregorianCalendar
package one;

import java.text.SimpleDateFormat;
import java.util.*;

public class CalendarTestT {

private static final int _4 = 4;
private static final int _3 = 3;
private static final int _2 = 2;
private static final int _1 = 1;

/**
* @param args
*/
public static void main(String[] args) {

String starttime = "1234";

Calendar date= Calendar.getInstance();
try{
Calendar calendar=new GregorianCalendar(date.get(Calendar.YEAR),
              date.get(Calendar.MONTH),date.get(Calendar.DAY_OF_MONTH)
              ,Integer.parseInt(starttime.substring(_1, _2)),
               Integer.parseInt(starttime.substring(_3, _4)));
Calendar calendar2 = Calendar.getInstance();
if(calendar.before(calendar2)){
System.out.println("ssssssssssssssssssssss");
}
}catch(Exception e){

}
}

}