Java用于取得当前日期相对应的月初，月末，季初，季末，年初，年末时间

心已赠人 2023-10-09 10:04 12阅读 0赞

转自：[https://www.cnblogs.com/lr393993507/p/5542689.html][https_www.cnblogs.com_lr393993507_p_5542689.html]

package com.zrar.date; 
import java.util.Calendar; 
/\*\* 
\* 
\* 描述:此类用于取得当前日期相对应的月初，月末，季初，季末，年初，年末，返回值均为String字符串 
\* 1、得到当前日期 today() 
\* 2、得到当前月份月初 thisMonth() 
\* 3、得到当前月份月底 thisMonthEnd() 
\* 4、得到当前季度季初 thisSeason() 
\* 5、得到当前季度季末 thisSeasonEnd() 
\* 6、得到当前年份年初 thisYear() 
\* 7、得到当前年份年底 thisYearEnd() 
\* 8、判断输入年份是否为闰年 leapYear 
\* 
\* 注意事项: 日期格式为：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; // 当前日期 
public DateThis() \{ 
localTime = Calendar.getInstance(); 
\} 
/\*\* 
\* 功能：得到当前日期 格式为：xxxx-yy-zz (eg: 2007-12-05) 
\* @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; 
\} 
/\*\* 
\* 功能：得到当前月份月初 格式为：xxxx-yy-zz (eg: 2007-12-01) 
\* @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"; 
\} 
/\*\* 
\* 功能：得到当前月份月底 格式为：xxxx-yy-zz (eg: 2007-12-31) 
\* @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; 
\} 
/\*\* 
\* 功能：得到当前季度季初 格式为：xxxx-yy-zz (eg: 2007-10-01) 
\* @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; 
\} 
/\*\* 
\* 功能：得到当前季度季末 格式为：xxxx-yy-zz (eg: 2007-12-31) 
\* @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; 
\} 
/\*\* 
\* 功能：得到当前年份年初 格式为：xxxx-yy-zz (eg: 2007-01-01) 
\* @return String 
\* @author pure 
\*/ 
public String thisYear() \{ 
x = localTime.get(Calendar.YEAR); 
return x + "-01" + "-01"; 
\} 
/\*\* 
\* 功能：得到当前年份年底 格式为：xxxx-yy-zz (eg: 2007-12-31) 
\* @return String 
\* @author pure 
\*/ 
public String thisYearEnd() \{ 
x = localTime.get(Calendar.YEAR); 
return x + "-12" + "-31"; 
\} 
/\*\* 
\* 功能：判断输入年份是否为闰年 
\* 
\* @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; 
\} 
\}

转载于:https://www.cnblogs.com/sharpest/p/11555738.html

[https_www.cnblogs.com_lr393993507_p_5542689.html]: https://www.cnblogs.com/lr393993507/p/5542689.html