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Write the output for the following statements:String str = abcd; str . charAt ( 2 ) ; str . indexOf ( a )

Write the output for the following statements:String str

=

"abcd"; str

.

charAt

(2)

; str

.

indexOf

("

")

; str

.

length

()

; str

.

substring

(2)

; str

.

substring

(2, 3)

; str

.

isEmpty

()

; str

.

contains

("

")

;

|

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