Open Source Developer

// 숫자 체크
function CheckNum(tocheck)
{
var isnum = true;

if (tocheck == null || tocheck == "")
{
isnum = false;
return isnum;
}

for (var j = 0 ; j < tocheck.length; j++)
{
if (tocheck.substring(j, j + 1) != "0" &&
tocheck.substring(j, j + 1) != "1" &&
tocheck.substring(j, j + 1) != "2" &&
tocheck.substring(j, j + 1) != "3" &&
tocheck.substring(j, j + 1) != "4" &&
tocheck.substring(j, j + 1) != "5" &&
tocheck.substring(j, j + 1) != "6" &&
tocheck.substring(j, j + 1) != "7" &&
tocheck.substring(j, j + 1) != "8" &&
tocheck.substring(j, j + 1) != "9")
{
isnum = false;
}
}
return isnum;
}

class CharTest
{
// 한글인가?
public static boolean isHangul(char c)
{
return isHangulSyllables(c) || isHangulJamo(c) || isHangulCompatibilityJamo(c);
}

// 완성된 한글인가? 참조: http://www.unicode.org/charts/PDF/UAC00.pdf
public static boolean isHangulSyllables(char c)
{
// return (c >= (char) 0xAC00 && c <= (char) 0xD7AF);
return (c >= (char) 0xAC00 && c <= (char) 0xD7A3);
}

// (현대 및 고어) 한글 자모? 참조: http://www.unicode.org/charts/PDF/U1100.pdf
public static boolean isHangulJamo(char c)
{
// return (c >= (char) 0x1100 && c <= (char) 0x11FF);
return (c >= (char) 0x1100 && c <= (char) 0x1159)
|| (c >= (char) 0x1161 && c <= (char) 0x11A2)
|| (c >= (char) 0x11A8 && c <= (char) 0x11F9);
}

// (현대 및 고어) 한글 자모? 참조: http://www.unicode.org/charts/PDF/U3130.pdf
public static boolean isHangulCompatibilityJamo(char c)
{
// return (c >= (char) 0x3130 && c <= (char) 0x318F);
return (c >= (char) 0x3131 && c <= (char) 0x318E);
}

public static void main(String[] args)
{
System.out.println('가' < '각');
String str = "자바클루는 JavaClue다. ㄱ은 한글이다.";
char c;
for (int i = 0; i < str.length(); i++)
{
c = str.charAt(i);
System.out.println("'" + c + "': " + isHangul(c));
}
}
}

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