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package com.zrar.date;
import java.util.Calendar;
/**
- 形容:此类用于获得以后日期绝对应的月初，月末，季初，季末，年初，年末，返回值均为String字符串
- 1、失去以后日期 today()
- 2、失去以后月份月初 thisMonth()
- 3、失去以后月份月底 thisMonthEnd()
- 4、失去以后季度季初 thisSeason()
- 5、失去以后季度季末 thisSeasonEnd()
- 6、失去以后年份年初 thisYear()
- 7、失去以后年份年底 thisYearEnd()
- 8、判断输出年份是否为平年 leapYear
- 注意事项: 日期格局为：xxxx-yy-zz (eg: 2007-12-05)
* - 实例:
* - @author pure
*/
public class DateThis {
private int x; // 日期属性：年private int y; // 日期属性：月private int z; // 日期属性：日private Calendar localTime; // 以后日期public DateThis() { localTime = Calendar.getInstance();}/** * 性能：失去以后日期 格局为：xxxx-yy-zz (eg: 2007-12-05)<br> * @return String * @author pure */public String today() { String strY = null; String strZ = null; x = localTime.get(Calendar.YEAR); y = localTime.get(Calendar.MONTH) + 1; z = localTime.get(Calendar.DATE); strY = y >= 10 ? String.valueOf(y) : ("0" + y); strZ = z >= 10 ? String.valueOf(z) : ("0" + z); return x + "-" + strY + "-" + strZ;}/** * 性能：失去以后月份月初 格局为：xxxx-yy-zz (eg: 2007-12-01)<br> * @return String * @author pure */public String thisMonth() { String strY = null; x = localTime.get(Calendar.YEAR); y = localTime.get(Calendar.MONTH) + 1; strY = y >= 10 ? String.valueOf(y) : ("0" + y); return x + "-" + strY + "-01";}/** * 性能：失去以后月份月底 格局为：xxxx-yy-zz (eg: 2007-12-31)<br> * @return String * @author pure */public String thisMonthEnd() { String strY = null; String strZ = null; boolean leap = false; x = localTime.get(Calendar.YEAR); y = localTime.get(Calendar.MONTH) + 1; if (y == 1 || y == 3 || y == 5 || y == 7 || y == 8 || y == 10 || y == 12) { strZ = "31"; } if (y == 4 || y == 6 || y == 9 || y == 11) { strZ = "30"; } if (y == 2) { leap = leapYear(x); if (leap) { strZ = "29"; } else { strZ = "28"; } } strY = y >= 10 ? String.valueOf(y) : ("0" + y); return x + "-" + strY + "-" + strZ;}/** * 性能：失去以后季度季初 格局为：xxxx-yy-zz (eg: 2007-10-01)<br> * @return String * @author pure */public String thisSeason() { String dateString = ""; x = localTime.get(Calendar.YEAR); y = localTime.get(Calendar.MONTH) + 1; if (y >= 1 && y <= 3) { dateString = x + "-" + "01" + "-" + "01"; } if (y >= 4 && y <= 6) { dateString = x + "-" + "04" + "-" + "01"; } if (y >= 7 && y <= 9) { dateString = x + "-" + "07" + "-" + "01"; } if (y >= 10 && y <= 12) { dateString = x + "-" + "10" + "-" + "01"; } return dateString;}/** * 性能：失去以后季度季末 格局为：xxxx-yy-zz (eg: 2007-12-31)<br> * @return String * @author pure */public String thisSeasonEnd() { String dateString = ""; x = localTime.get(Calendar.YEAR); y = localTime.get(Calendar.MONTH) + 1; if (y >= 1 && y <= 3) { dateString = x + "-" + "03" + "-" + "31"; } if (y >= 4 && y <= 6) { dateString = x + "-" + "06" + "-" + "30"; } if (y >= 7 && y <= 9) { dateString = x + "-" + "09" + "-" + "30"; } if (y >= 10 && y <= 12) { dateString = x + "-" + "12" + "-" + "31"; } return dateString;}/** * 性能：失去以后年份年初 格局为：xxxx-yy-zz (eg: 2007-01-01)<br> * @return String * @author pure */public String thisYear() { x = localTime.get(Calendar.YEAR); return x + "-01" + "-01";}/** * 性能：失去以后年份年底 格局为：xxxx-yy-zz (eg: 2007-12-31)<br> * @return String * @author pure */public String thisYearEnd() { x = localTime.get(Calendar.YEAR); return x + "-12" + "-31";}/** * 性能：判断输出年份是否为平年<br> * * @param year * @return 是：true 否：false * @author pure */public boolean leapYear(int year) { boolean leap; if (year % 4 == 0) { if (year % 100 == 0) { if (year % 400 == 0) leap = true; else leap = false; } else leap = true; } else leap = false; return leap;}}