{"id":1659,"date":"2023-11-28T03:09:47","date_gmt":"2023-11-28T03:09:47","guid":{"rendered":"https:\/\/www.multiplechoicequestions.org\/?p=1659"},"modified":"2023-11-28T03:30:57","modified_gmt":"2023-11-28T03:30:57","slug":"java-lambda-mcq-questions-and-answers","status":"publish","type":"post","link":"https:\/\/www.multiplechoicequestions.org\/java-programming\/java-lambda-mcq-questions-and-answers\/","title":{"rendered":"Java Lambda MCQ Questions and Answers"},"content":{"rendered":"\n<h2>1. What is a lambda expression in Java?<\/h2>\n<div class=\"optioncontainer\">a) A variable declaration<\/div>\n<div class=\"optioncontainer\">b) A method that executes asynchronously<\/div>\n<div class=\"optioncontainer\">c) An anonymous function<\/div>\n<div class=\"optioncontainer\">d) A loop structure<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer1')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer1\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">c) An anonymous function<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Lambda expressions in Java are a way to create anonymous functions, which are not bound to any identifier.\n<\/p>\n<\/div>\n\n<h2>2. Which interface is used with lambda expressions in Java?<\/h2>\n<div class=\"optioncontainer\">a) Runnable<\/div>\n<div class=\"optioncontainer\">b) ActionListener<\/div>\n<div class=\"optioncontainer\">c) FunctionalInterface<\/div>\n<div class=\"optioncontainer\">d) Comparator<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer2')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer2\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">c) FunctionalInterface<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Lambda expressions are used with functional interfaces, which are interfaces with a single abstract method.\n<\/p>\n<\/div>\n\n<h2>3. How do you identify a lambda expression in Java?<\/h2>\n<div class=\"optioncontainer\">a) Using the &apos;lambda&apos; keyword<\/div>\n<div class=\"optioncontainer\">b) Using an arrow (-&gt;) operator<\/div>\n<div class=\"optioncontainer\">c) By placing it inside curly braces {}<\/div>\n<div class=\"optioncontainer\">d) By using the &apos;@&apos; symbol<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer3')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer3\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">b) Using an arrow (-&gt;) operator<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Lambda expressions in Java are characterized by the arrow (-&gt;) operator.\n<\/p>\n<\/div>\n\n<h2>4. Can lambda expressions access local variables of its enclosing scope?<\/h2>\n<div class=\"optioncontainer\">a) Yes, but only if they are final<\/div>\n<div class=\"optioncontainer\">b) Yes, they can access any local variables<\/div>\n<div class=\"optioncontainer\">c) No, they cannot access local variables<\/div>\n<div class=\"optioncontainer\">d) Yes, but only static variables<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer4')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer4\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">a) Yes, but only if they are final<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Lambda expressions can access local variables of their enclosing scope, but those variables must be final or effectively final.\n<\/p>\n<\/div>\n\n<h2>5. What is the return type of a lambda expression?<\/h2>\n<div class=\"optioncontainer\">a) Void<\/div>\n<div class=\"optioncontainer\">b) Depends on the context it&apos;s used in<\/div>\n<div class=\"optioncontainer\">c) Always an object<\/div>\n<div class=\"optioncontainer\">d) Integer<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer5')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer5\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">b) Depends on the context it&apos;s used in<\/div>\n    <h3>Explanation:<\/h3>\n    <p> The return type of a lambda expression depends on the context in which it is used, particularly the functional interface it targets.\n<\/p>\n<\/div>\n\n<h2>6. Can a lambda expression throw an exception?<\/h2>\n<div class=\"optioncontainer\">a) Yes<\/div>\n<div class=\"optioncontainer\">b) No<\/div>\n<div class=\"optioncontainer\">c) Only unchecked exceptions<\/div>\n<div class=\"optioncontainer\">d) Only if it&apos;s a part of a try-catch block<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer6')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer6\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">a) Yes<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Lambda expressions can throw exceptions, but if a checked exception is thrown, it must be compatible with the exception type declared in the functional interface&apos;s abstract method.\n<\/p>\n<\/div>\n\n<h2>7. What are lambda expressions primarily used for?<\/h2>\n<div class=\"optioncontainer\">a) To create new threads<\/div>\n<div class=\"optioncontainer\">b) For database operations<\/div>\n<div class=\"optioncontainer\">c) To implement event listeners<\/div>\n<div class=\"optioncontainer\">d) To provide implementation of functional interfaces<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer7')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer7\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">d) To provide implementation of functional interfaces<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Lambda expressions are primarily used to provide implementations for functional interfaces in a concise way.\n<\/p>\n<\/div>\n\n<h2>8. How do you write a lambda expression with no parameters?<\/h2>\n<div class=\"optioncontainer\">a) ()<\/div>\n<div class=\"optioncontainer\">b) -&gt; {}<\/div>\n<div class=\"optioncontainer\">c) () -&gt; {}<\/div>\n<div class=\"optioncontainer\">d) _ -&gt; {}<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer8')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer8\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">c) () -&gt; {}<\/div>\n    <h3>Explanation:<\/h3>\n    <p> A lambda expression with no parameters is written using empty parentheses followed by the arrow operator and curly braces.\n<\/p>\n<\/div>\n\n<h2>9. Can lambda expressions replace anonymous inner classes?<\/h2>\n<div class=\"optioncontainer\">a) Yes, in all cases<\/div>\n<div class=\"optioncontainer\">b) No, never<\/div>\n<div class=\"optioncontainer\">c) Only if the interface has a single abstract method<\/div>\n<div class=\"optioncontainer\">d) Only for interfaces that are annotated with @FunctionalInterface<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer9')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer9\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">c) Only if the interface has a single abstract method<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Lambda expressions can replace anonymous inner classes that implement interfaces with a single abstract method.\n<\/p>\n<\/div>\n\n<h2>10. How many abstract methods can a functional interface have?<\/h2>\n<div class=\"optioncontainer\">a) One<\/div>\n<div class=\"optioncontainer\">b) Two<\/div>\n<div class=\"optioncontainer\">c) As many as needed<\/div>\n<div class=\"optioncontainer\">d) None<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer10')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer10\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">a) One<\/div>\n    <h3>Explanation:<\/h3>\n    <p> A functional interface in Java can have only one abstract method.\n<\/p>\n<\/div>\n\n<h2>11. Can lambda expressions be stored in variables?<\/h2>\n<div class=\"optioncontainer\">a) Yes<\/div>\n<div class=\"optioncontainer\">b) No<\/div>\n<div class=\"optioncontainer\">c) Only in static variables<\/div>\n<div class=\"optioncontainer\">d) Only in final variables<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer11')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer11\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">a) Yes<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Lambda expressions can be assigned to variables whose type is a functional interface.\n<\/p>\n<\/div>\n\n<h2>12. What is a method reference in Java?<\/h2>\n<div class=\"optioncontainer\">a) A reference to a static method<\/div>\n<div class=\"optioncontainer\">b) A way to call a method using its name<\/div>\n<div class=\"optioncontainer\">c) An alternative syntax to lambda expressions for method invocation<\/div>\n<div class=\"optioncontainer\">d) A type of exception handling<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer12')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer12\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">c) An alternative syntax to lambda expressions for method invocation<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Method references are an alternative, shortened syntax to lambda expressions used to refer directly to methods.\n<\/p>\n<\/div>\n\n<h2>13. Which of these is a valid lambda expression in Java?<\/h2>\n<div class=\"optioncontainer\">a) x, y -&gt; x + y<\/div>\n<div class=\"optioncontainer\">b) (x, y) -&gt; x + y<\/div>\n<div class=\"optioncontainer\">c) (x, y) =&gt; x + y<\/div>\n<div class=\"optioncontainer\">d) (x + y)<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer13')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer13\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">b) (x, y) -&gt; x + y<\/div>\n    <h3>Explanation:<\/h3>\n    <p> The valid syntax for a lambda expression with two parameters is enclosing them in parentheses followed by the arrow operator and the expression.\n<\/p>\n<\/div>\n\n<h2>14. How are lambda expressions compiled in Java?<\/h2>\n<div class=\"optioncontainer\">a) Into anonymous inner classes<\/div>\n<div class=\"optioncontainer\">b) Into regular methods of the class where they are defined<\/div>\n<div class=\"optioncontainer\">c) Using a special lambda compiler<\/div>\n<div class=\"optioncontainer\">d) Into instances of functional interfaces<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer14')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer14\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">a) Into anonymous inner classes<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Internally, lambda expressions are compiled into anonymous inner classes by the Java compiler.\n<\/p>\n<\/div>\n\n<h2>15. Can lambda expressions modify local variables from their enclosing scope?<\/h2>\n<div class=\"optioncontainer\">a) Yes, without any restrictions<\/div>\n<div class=\"optioncontainer\">b) No, they cannot modify local variables<\/div>\n<div class=\"optioncontainer\">c) Only final or effectively final variables can be modified<\/div>\n<div class=\"optioncontainer\">d) Only static variables can be modified<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer15')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer15\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">b) No, they cannot modify local variables<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Lambda expressions cannot modify local variables from their enclosing scope; they can only read final or effectively final variables.\n<\/p>\n<\/div>\n\n<h2>16. What is the purpose of the @FunctionalInterface annotation?<\/h2>\n<div class=\"optioncontainer\">a) To define an interface as functional<\/div>\n<div class=\"optioncontainer\">b) To enable lambda expressions<\/div>\n<div class=\"optioncontainer\">c) To create anonymous classes<\/div>\n<div class=\"optioncontainer\">d) To indicate that an interface can be implemented using a lambda expression<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer16')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer16\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">a) To define an interface as functional<\/div>\n    <h3>Explanation:<\/h3>\n    <p> The @FunctionalInterface annotation is used to indicate that an interface is intended to be a functional interface, i.e., it should have exactly one abstract method.\n<\/p>\n<\/div>\n\n<h2>17. What happens if the body of a lambda expression has multiple statements?<\/h2>\n<div class=\"optioncontainer\">a) It must be enclosed in curly braces<\/div>\n<div class=\"optioncontainer\">b) The lambda expression becomes invalid<\/div>\n<div class=\"optioncontainer\">c) Only the last statement is considered<\/div>\n<div class=\"optioncontainer\">d) It&apos;s automatically converted into a method<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer17')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer17\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">a) It must be enclosed in curly braces<\/div>\n    <h3>Explanation:<\/h3>\n    <p> If a lambda expression contains more than one statement, its body must be enclosed in curly braces.\n<\/p>\n<\/div>\n\n<h2>18. In lambda expressions, what does the double colon (::) operator represent?<\/h2>\n<div class=\"optioncontainer\">a) Method reference<\/div>\n<div class=\"optioncontainer\">b) Scope resolution<\/div>\n<div class=\"optioncontainer\">c) Lambda declaration<\/div>\n<div class=\"optioncontainer\">d) Double comparison<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer18')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer18\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">a) Method reference<\/div>\n    <h3>Explanation:<\/h3>\n    <p> The double colon (::) operator in lambda expressions is used for method references, providing a shorthand notation for a lambda expression calling a method.\n<\/p>\n<\/div>\n\n<h2>19. How can lambda expressions access external non-final variables?<\/h2>\n<div class=\"optioncontainer\">a) By passing them as parameters<\/div>\n<div class=\"optioncontainer\">b) They can directly access any external variables<\/div>\n<div class=\"optioncontainer\">c) By declaring them as final within the lambda<\/div>\n<div class=\"optioncontainer\">d) Lambda expressions cannot access external non-final variables<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer19')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer19\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">a) By passing them as parameters<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Lambda expressions can access external non-final variables by passing them as parameters. Otherwise, they can only access final or effectively final variables from their enclosing scope.\n<\/p>\n<\/div>\n\n<h2>20. What type of parameters can a lambda expression have?<\/h2>\n<div class=\"optioncontainer\">a) Only final parameters<\/div>\n<div class=\"optioncontainer\">b) Typed, untyped, or no parameters<\/div>\n<div class=\"optioncontainer\">c) Only primitive data types<\/div>\n<div class=\"optioncontainer\">d) Only Object type parameters<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer20')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer20\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">b) Typed, untyped, or no parameters<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Lambda expressions can have typed parameters, untyped parameters (inferred from context), or no parameters at all.\n<\/p>\n<\/div>\n\n<h2>21. What is the primary advantage of lambda expressions?<\/h2>\n<div class=\"optioncontainer\">a) Improved performance<\/div>\n<div class=\"optioncontainer\">b) Enhanced security<\/div>\n<div class=\"optioncontainer\">c) Increased modularity<\/div>\n<div class=\"optioncontainer\">d) More concise code<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer21')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer21\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">d) More concise code<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Lambda expressions allow for more concise and readable code, especially when implementing single-method interfaces.\n<\/p>\n<\/div>\n\n<h2>22. Which of the following is a built-in functional interface in Java?<\/h2>\n<div class=\"optioncontainer\">a) Runnable<\/div>\n<div class=\"optioncontainer\">b) ArrayList<\/div>\n<div class=\"optioncontainer\">c) HashMap<\/div>\n<div class=\"optioncontainer\">d) Thread<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer22')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer22\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">a) Runnable<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Runnable is a built-in functional interface in Java that is often used with lambda expressions for creating threads.\n<\/p>\n<\/div>\n\n<h2>23. Can lambda expressions be passed as arguments to a method?<\/h2>\n<div class=\"optioncontainer\">a) Yes<\/div>\n<div class=\"optioncontainer\">b) No<\/div>\n<div class=\"optioncontainer\">c) Only in static methods<\/div>\n<div class=\"optioncontainer\">d) Only if the method accepts interfaces<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer23')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer23\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">a) Yes<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Lambda expressions can be passed as arguments to methods, particularly those that expect a functional interface as a parameter.\n<\/p>\n<\/div>\n\n<h2>24. How do lambda expressions facilitate functional programming in Java?<\/h2>\n<div class=\"optioncontainer\">a) By adding new functional programming languages<\/div>\n<div class=\"optioncontainer\">b) By allowing methods to be treated as arguments<\/div>\n<div class=\"optioncontainer\">c) By creating new APIs for functional programming<\/div>\n<div class=\"optioncontainer\">d) By converting Java into a functional language<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer24')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer24\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">b) By allowing methods to be treated as arguments<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Lambda expressions facilitate functional programming by allowing methods to be treated as lambda expressions, or first-class citizens, which can be passed around as arguments or returned from methods.\n<\/p>\n<\/div>\n\n<h2>25. Can lambda expressions be used to create instances of an interface?<\/h2>\n<div class=\"optioncontainer\">a) Yes, if the interface is a functional interface<\/div>\n<div class=\"optioncontainer\">b) No, they cannot be used to create instances<\/div>\n<div class=\"optioncontainer\">c) Only if the interface is annotated with @Lambda<\/div>\n<div class=\"optioncontainer\">d) Only if the interface has no default methods<\/div>\n<button class=\"answer-explanation\" onclick=\"toggleAnswer('answer25')\">Click to View Answer and Explanation<\/button>\n<div class=\"answer\" id=\"answer25\">\n    <h3>Answer:<\/h3>\n    <div class=\"optioncontainer\">a) Yes, if the interface is a functional interface<\/div>\n    <h3>Explanation:<\/h3>\n    <p> Lambda expressions can be used to provide an implementation of a functional interface, effectively creating an instance of that interface.\n<\/p>\n<\/div>\n\n<script>\n   window.onload = function() {\ndocument.getElementById('answer1').style.display = 'none';\ndocument.getElementById('answer2').style.display = 'none';\ndocument.getElementById('answer3').style.display = 'none';\ndocument.getElementById('answer4').style.display = 'none';\ndocument.getElementById('answer5').style.display = 'none';\ndocument.getElementById('answer6').style.display = 'none';\ndocument.getElementById('answer7').style.display = 'none';\ndocument.getElementById('answer8').style.display = 'none';\ndocument.getElementById('answer9').style.display = 'none';\ndocument.getElementById('answer10').style.display = 'none';\ndocument.getElementById('answer11').style.display = 'none';\ndocument.getElementById('answer12').style.display = 'none';\ndocument.getElementById('answer13').style.display = 'none';\ndocument.getElementById('answer14').style.display = 'none';\ndocument.getElementById('answer15').style.display = 'none';\ndocument.getElementById('answer16').style.display = 'none';\ndocument.getElementById('answer17').style.display = 'none';\ndocument.getElementById('answer18').style.display = 'none';\ndocument.getElementById('answer19').style.display = 'none';\ndocument.getElementById('answer20').style.display = 'none';\ndocument.getElementById('answer21').style.display = 'none';\ndocument.getElementById('answer22').style.display = 'none';\ndocument.getElementById('answer23').style.display = 'none';\ndocument.getElementById('answer24').style.display = 'none';\ndocument.getElementById('answer25').style.display = 'none';\n   };\n\n   function toggleAnswer(answerId) {\n     var answer = document.getElementById(answerId);\n     if (answer.style.display === \"none\") {\n       answer.style.display = \"block\";\n     } else {\n       answer.style.display = \"none\";\n     }\n   }\n<\/script>\n\n","protected":false},"excerpt":{"rendered":"<p>1. What is a lambda expression in Java? a) A variable declaration b) A method that executes asynchronously c) An anonymous function d) A loop structure Click to View Answer and Explanation Answer: c) An anonymous function Explanation: Lambda expressions in Java are a way to create anonymous functions, which are not bound to any [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1659","post","type-post","status-publish","format-standard","hentry","category-java-programming"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Java Lambda MCQ Questions and Answers - Multiple Choice Questions<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.multiplechoicequestions.org\/java-programming\/java-lambda-mcq-questions-and-answers\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java Lambda MCQ Questions and Answers - Multiple Choice Questions\" \/>\n<meta property=\"og:description\" content=\"1. 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