public class StrBuff {

	public static void main(String[] args) {
		StringBuffer buff = new StringBuffer("sch\u00E4fer");
		System.out.println(buff);
		buff.insert(3, 'l');
		System.out.println(buff);
		buff.insert(0, 7);
		System.out.println(buff);
		buff.append("h\u00F6hle");
		System.out.println(buff);
	}
}