Tutorial - Strings, OO Concepts

Strings

1. Evaluate the following expressions. For those methods not covered in lectures,

use the API to discover how they work (a "learning to learn" Graduate Quality

2).

a. "y" + 2 + 3

b. "y" + (3 + 4)

c. 2 + 3 + "y"

d. 2 + (3 + "y")

e. "y" + (2 + 3) + "z"

f. "y" + 2 + 3 + "z"

g. "Luct".length( )

h. " Luct ".charAt(3)

i. " Luct ".replace('u', 'k')

j. " Luct ".substring(1, 3)

k. " Luct ".substring(2)

l. " Luct ".equalsIgnoreCase("luct")

2. Explain how the implementation of substring(int beginIndex) would

take advantage of substring(int beginIndex, int endIndex).