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What is the Output of the following code :

public class Example8 {
public static void main(String[] args) {
System.out.println(check(null, 3));
System.out.println(check("hello", 7));
System.out.println(check("bye", 2));
System.out.println(check("hai", 3));
}

public static int check(String a, int n) {
if (n == 7)
return n;
else if (n == 3) {
if (a != null)
return 5;
} else if (n == 5 && a != null) {
if (a.equals("hai"))
return 3;
else if (a.equals("bye"))
return 4;
}
return -3;
}
}

What is the output of the following code :

1. -3

2. 7

3. -3 7 -3 5

4.  5

Answer :

(3)

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