Calendar日历类（二）算出相差天数_calendar计算天数差

import java.util.Calendar;

public class t11 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Calendar c1=Calendar.getInstance();
		c1.set(2016, 8-1, 20);
		Calendar c2=Calendar.getInstance();
		c2.set(2016, 8-1, 29);
		long t1=c1.getTimeInMillis();
		long t2=c2.getTimeInMillis();
		int days=(int)(t2-t1)/(24*60*60*1000);//除以1000变秒除以60变分钟除以60变小时除以24变天数
		System.out.println(days);

	}

}

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