您可以使用SimpleDateFormat类将日期格式化为所需的格式。

只要检查这个链接，你就可以得到你的例子的想法。

例如:

String dateStr = "04/05/2010"; 
 
SimpleDateFormat curFormater = new SimpleDateFormat("dd/MM/yyyy"); 
Date dateObj = curFormater.parse(dateStr); 
SimpleDateFormat postFormater = new SimpleDateFormat("MMMM dd, yyyy"); 
 
String newDateStr = postFormater.format(dateObj); 

更新:

详细的示例在这里，我建议您通过这个示例并理解SimpleDateFormat类的概念。

最终解决方案:

Date c = Calendar.getInstance().getTime();
System.out.println("Current time => " + c);

SimpleDateFormat df = new SimpleDateFormat("dd-MMM-yyyy", Locale.getDefault());
String formattedDate = df.format(c);

Calendar cal = Calendar.getInstance();      
Calendar dt = Calendar.getInstance(); 
dt.clear();
dt.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH),cal.get(Calendar.DATE)); 
return dt.getTime();        

Date c = Calendar.getInstance().getTime();
System.out.println("Current time => " + c);

SimpleDateFormat df = new SimpleDateFormat("dd-MMM-yyyy");
String formattedDate = df.format(c);

这是最好的答案……

 String date = new SimpleDateFormat("yyyy-MM-dd").format(new Date());

//导入Date类为java.util

In Kotlin you can use this code : - 

Simple only need to change date format to this "dd-MM-yyyy" 
val d = Date()
val str: CharSequence = DateFormat.format("dd-MM-yyyy", d.getTime())
Log.e("", str.toString())
    
In Java You use this code: - 
    
Date date = new Date();
CharSequence str  = DateFormat.format("dd-MM-yyyy", date.getTime());
Log.e("Date", str.toString())

LocalDateTime ldt2 = LocalDateTime.now();
String year = ldt2.getYear()+"";
String month = ldt2.getMonthValue()+"";
String date = ldt2.getDayOfMonth()+"";
String hour = ldt2.getHour()+"";
String minute = ldt2.getMinute()+"";
String secs = ldt2.getSecond()+"";