22 indexOf('o')=4, lastIndexOf('o')=7, length=11. 4+7+11 = 22.

String Objects: Concatenation, Literals, and More

AP Computer Science A· difficulty 3/5

public static int run() {
    String s = "Hello World";
    return s.indexOf('o') + s.lastIndexOf('o') + s.length();
}
// Call: System.out.println(run());

What is printed?

A
$22$
check_circle
B
$16$
C
$21$
D
$23$

Explanation

indexOf('o')=4, lastIndexOf('o')=7, length=11. 4+7+11 = 22.

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