C# と VB.NET の質問掲示板

整形してみました。

public class PartIsNotUnderstand {

	public static void main(String[] args){
		System.out.println(f3("Abc012_59F_#012Gh"));
	}
	
	private static String f3( String s ) {
		StringBuilder sb = new StringBuilder();

		boolean sharp = false;

		for ( int i=0; i<s.length( ); i++ ) {
			char c = s.charAt(i);
			if ( sharp ) {
				sb.append(c);
			} else {
				if( 'a' <= c && c <= 'z' ){
					c = (char)( 'A' + ( c - 'a' ) );
				} else if ( '0' <= c && c <= '9' ) {
					c = (char)( '0' - ( c - '9' ) );
				} else if ( '#' == c ) {
					sharp = true;
				}
				sb.append(c);
			}
		}
		return sb.toString();
	}
}