1. What's the value of the following expressions?

a) 1+ 2+ " buckle my shoe"

b) "one-"+ "two"+ " buckle my shoe"

c) ""+ 1+ 2+ " buckle my shoe"

d) '1'+ 2+ " buckle my shoe"

e) 1+ "-2"+ " buckle my shoe"

3 buckle my shoe -- one and two are added together and concatenated to the string

one-two buckle my shoe -- the three strings are concatenated

12 buckle my shoe -- The first string ensures the whole line is a string thereby printing 1 and 2 instead of adding them together.

51 buckle my shoe -- the ASCII value of char '1' is 49 added to the integer 2 produces ASCII value 51, which is concatenated to the trailing string.

1-2 buckle my shoe -- the integer value 1 is concatenated to the trailing two strings.

Using the valueOf() method we come up with the above strings.

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