Lösung Übung 7: Zahlen zu Woertern

public class ZahlenZuWoerter {

	public static void main( String[] args ) {
		
		if( args.length < 1 )
			System.exit(1);
			
		String str = args[0];
		int len = str.length();
		
		for(int i = 0; i < len; i++ ) {
			switch( str.charAt(i) ) {
			
				case '0':
					System.out.print("null");
					break;
				case '1':
					System.out.print("eins");
					break;
				case '2':
					System.out.print("zwei");
					break;
				case '3':
					System.out.print("drei");
					break;
				case '4':
					System.out.print("vier");
					break;
				case '5':
					System.out.print("fünf");
					break;
				case '6':
					System.out.print("sechs");
					break;
				case '7':
					System.out.print("sieben");
					break;
				case '8':
					System.out.print("acht");
					break;
				case '9':
					System.out.print("neun");
					break;
				default:
					System.out.print( str.charAt(i) );
					break;		
			}
			
			if( i < len-1 ) {
				System.out.print(" ");
			}
			else {
				System.out.print("\n");
			}					
		}
	}
}

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