자바에서 스트링형식

자바언어에서 스트링 형식지정

전화번호

예시1

long phoneFmt = 123456789L;
//get a 12 digits String, filling with left '0' (on the prefix)  
DecimalFormat phoneDecimalFmt = new DecimalFormat("0000000000");
String phoneRawString= phoneDecimalFmt.format(phoneFmt);

java.text.MessageFormat phoneMsgFmt=new java.text.MessageFormat("({0})-{1}-{2}");
    //suposing a grouping of 3-3-4
String[] phoneNumArr={phoneRawString.substring(0, 3),
          phoneRawString.substring(3,6),
          phoneRawString.substring(6)};

System.out.println(phoneMsgFmt.format(phoneNumArr));

 

예시2
import javax.swing.text.MaskFormatter;

String phoneMask= "###-###-####";
String phoneNumber= "123423452345";

MaskFormatter maskFormatter= new MaskFormatter(phoneMask);
maskFormatter.setValueContainsLiteralCharacters(false);
maskFormatter.valueToString(phoneNumber) ;