Chapter 3.3, Problem 21SCP

Explanation of Solution

To produce the string “SCORE”:

• The given statement is,

String quote=”Four score and seven years ago”;

• To return the substring “score” from the given string, the user can use the method “substring()” as follows,

quote.substring(5,10);

• In the above statement, “5” represents the index of the first occurrence of “s” and “10” represents the index of whitespace after the string “score”...

Explanation of Solution

To produce the string “four years”:

• The given statement is,

String quote=”Four score and seven years ago”;

• To return the substring “Four” from the given string, the user can use the method “substring()” as follows,

quote.substring(0,4);

• In the above statement, “0” represents the index of the character “F” and “4” represents the index of whitespace after the string “Four”.
• To convert the string “Four” to “four”, the method “toLowerCase()” is used as follows,

quote.toLowerCase().substring(0,4)

• To obtain the substring “years” the below statement is used...