To find the output of the given program, let's go through each step:

1. The variable i is initialized with a value of 5.
2. The printf function is used to print the value of i=++i == 6.
3. The expression ++i increments the value of i by 1 before it is used in the comparison.
4. The comparison i == 6 checks if the incremented value of i is equal to 6.
5. The result of the comparison is assigned to i.
6. The printf function prints the value of i, which is the result of the comparison.

Now, let's analyze the expression i=++i == 6:

1. The variable i is incremented by 1, so its new value is 6.
2. The comparison 6 == 6 evaluates to true, which is represented by the value 1.
3. The value 1 is assigned to i.

Therefore, the value of i is 1.

The correct answer is B) 1.

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• Wrong explanation

To answer this question, we need to understand the different modifiers that can be used in a Java interface.

In a Java interface, the following modifiers can be used:

A) final: This modifier indicates that the value of the variable cannot be changed once it is assigned. It is valid to use the final modifier in an interface variable declaration. Therefore, option A is valid.

B) native: This modifier is used to indicate that a method is implemented in a language other than Java. It is not valid to use the native modifier in an interface variable declaration.

C) abstract: This modifier is used to indicate that a method or class does not have an implementation and must be implemented by a subclass. It is not valid to use the abstract modifier in an interface variable declaration.

D) protected: This modifier is used to indicate that a variable, method, or class can only be accessed within its own package or by a subclass of its class. It is not valid to use the protected modifier in an interface variable declaration.

Therefore, the three valid modifiers to use on line 12 are final.

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• Wrong explanation

To answer this question, let's go through each option:

Option A) final - This option is valid on line 12. The "final" keyword is used to indicate that a variable's value cannot be changed once it has been assigned a value. In this case, the variable "MY_VALUE" is assigned the value 10, and since it is declared as "final", its value cannot be changed.

Option B) native - This option is not valid on line 12. The "native" keyword is used in the declaration of a method to indicate that the method's implementation will be provided by a native code, typically written in a language like C or C++. It is not applicable to variables.

Option C) abstract - This option is not valid on line 12. The "abstract" keyword is used to indicate that a class or method does not have an implementation and must be overridden by a subclass. It is not applicable to variables.

Option D) protected - This option is not valid on line 12. The "protected" keyword is used to specify that a member (variable or method) can only be accessed within its own package or by a subclass of its class. It is not applicable to variables.

Therefore, the three valid options on line 12 are A) final, C) and F) abstract.

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• Wrong explanation