package lab_6;

public class q2 {
	public static String toUpper(String str) {
		return str.toUpperCase();
	}

	public static String reversStr(String str) {
		str = new StringBuilder(str).reverse().toString();
		return str;
	}

	public static String toNumber(String str) {
		str = str.replaceAll("O", "zero");
		str = str.replaceAll("S", "\\$");
		str = str.replaceAll("L", "1");
		return str;
	}

	public static String beginAndEnd(String str) {
		str = "***" + str + "***";
		return str;
	}

}