Core Java - Interview Questions and Answers for 'Static interface method' - 3 question(s) found - Order By Rating Q1. Can we use static method definitions in Interfaces ? Core Java
Ans. Yes, Effective Java 8. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Related Questions What do you mean by "Java is a statically typed language" ? How can we run a java program without making any object? Which of the following combination of keywords is illegal in Java ? What are the advantages and disadvantages of static variables and static methods ? What are concepts introduced with Java 5 ? Why do we write public static void main ? Can we use some other syntax too for main ? Difference between Static and Singleton Class ? Can we declare static variables as transient ? Which of the following can be marked static ? Which of the following is false about main method ? Q2. Can we access Interface static method using Interface references ?
Ans. No, only using Interface Name. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Related Questions What is a Lambda Expression ? What's its use ? Difference between final and effectively final ? Why is effectively final even required ? What is StringJoiner ? Difference between Predicate, Supplier and Consumer ? What are few of the Annotations pre defined by Java? Name few meta-annotations ? Does java allow implementation of multiple interfaces having Default methods with Same name and Signature ? What are Default Methods ? Can we use static method definitions in Interfaces ? What is the use of Optional ? Q3. Can we have default method with same name and signature in the derived Interface as the static method in base Interface and vice versa ?
Ans. Yes , we can do that as static methods are not accessible using references and hence cannot lead to conflict. We cannot do inverse as Default methods cannot be overridden with the static methods in derived interface. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Related Questions Why can't we have diamond problem with interfaces ? Does java allow implementation of multiple interfaces having Default methods with Same name and Signature ? What are Default Methods ? What was the driving force to introduce default methods in Interfaces wef from Java 8 ? Can we have a private default method ? If there is a conflict between Base Class Method definition and Interface Default method definition, Which definition is Picked ? Can we have a default method definition in the interface without specifying the keyword "default" ? Can a class implement two Interfaces having default method with same name and signature ? What If we make the method as abstract in another Interface ? What if we override the conflicting method in the Class ?
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