String Methods Practice

These questions are to assess your understanding of the String methods.

Consider the following variable declarations:

String yum = "mashed potatoes";
String bestPie = "a-p-p-l-e";
String obligatoryVeg = "GREEN beanS";

For each of the questions below, answer with what the resulting value will be from each expression.

Question 1 yum.charAt(3 * 2 + 1)

See Answer

p

yum.charAt(3 * 2 + 1) will return the character located at index 7 inside of the yum (“mashed potatoes”), which is p.

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Question 2 obligatoryVeg.indexOf("e")

See Answer

7

obligatoryVeg.indexOf("e") returns the (first) index of the character “e” inside of obligatoryVeg (“GREEN beanS”), which is 7.

Note

Here indexOf is given a String (“e”), not a character. Either works for indexOf!

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Question 3 bestPie.length()

See Answer

9

The number of characters inside of bestPie (“a-p-p-l-e”) is 9.