Java Programming and Technical Programming Functions

A default method in an interface can be either private or public or protected. State True or False.

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In Java, a default method in an interface can be either public or protected, but it cannot be private. Because the idea behind creating interface is that it can by extended by another interface or extended by a class later and their it's abstract method can become concrete one.
So there's no point in making interface method private by default.
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Java Other Question

State true or false. Java is a structured programming language.

A. True

B. False Which three statements are true?

A. A method with the same signature as a private final method in class X can be implemented in a subclass of X.
B. A protected method in class X can be overridden by a subclass of A only if the subclass is in the same package as X.
C. A private static method can be called only within other static methods in class X.
D. A public static method in class X can be called by a subclass of X without explicitly referencing the class X.
E. A protected method in class X can be overridden by any subclass of X.
F. A final method in class X can be abstract if and only if X is abstract.
G. A non-static public final method in class X can be overridden in any subclass of X.