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).