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What will be the output of the program? interface Foo141 { int k = 0; /* Line 3 / } public class Test141 implements Foo141 { public static void main(String args[]) { int i; Test141 test141 = new Test141(); i = test141.k; / Line 11 */ i = Test141.k; i = Foo141.k; } }

Compilation fails.
Compiles and runs ok.
Compiles but throws an Exception at runtime.
Compiles but throws a RuntimeException at runtime.

Correct Answer: Compiles and runs ok.

Explanation:

The variable k on line 3 is an interface constant, it is implicitly public, static, and final. Static variables can be referenced in two ways:

Via a reference to any instance of the class (line 11)

Via the class name (line 12).

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What will be the output of the program? interface Foo141 { int k = 0; /* Line 3 */ } public class Test141 implements Foo141 { public static void main(String args[]) { int i; Test141 test141 = new Test141(); i = test141.k; /* Line 11 */ i = Test141.k; i = Foo141.k; } }

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What will be the output of the program? interface Foo141 { int k = 0; /* Line 3 / } public class Test141 implements Foo141 { public static void main(String args[]) { int i; Test141 test141 = new Test141(); i = test141.k; / Line 11 */ i = Test141.k; i = Foo141.k; } }