Chapter . 152 wo algorithms method, with a o composed of 40 As a tangible example of experimental analysis, we consider two algo or constructing long strings in Java. Our goal will be to have a method. caining signature such as repeat'*', 40), that produces a string compose asterisks: "******* ************************ **********". The first algorithm we consider performs repeated string concatenation. h on the + operator. It is implemented as method repeatl in Code Fragment The second algorithm relies on Java's StringBuilder class (see Section 1.3), a implemented as method repeat2 in Code Fragment 4.2. atenation, based Code Fragment 4.2. Section 1.3), and is of character c.* ** Uses repeated concatenation to compose a String with n copies of characte public static String repeat1(char c, int n) { String answer = ""; for (int j=0; j ;>;>