Java Programming Exam 1 Questions and Answers Already Passed

Java Programming Exam 1 Questions
and Answers Already Passed
What is the default value of a boolean variable in Java?


✔✔ false




How do you declare a method that does not return a value?


✔✔ Use the `void` keyword




What keyword is used to create a subclass in Java?


✔✔ extends




How can you check the length of an array in Java?


✔✔ Using `array.length`




Which Java class is used to take user input?


✔✔ Scanner




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,What does the `static` keyword do in Java?


✔✔ It associates a variable or method with the class rather than an instance




How do you create a new object in Java?


✔✔ Using the `new` keyword




Which method is used to convert a string to lowercase?


✔✔ `toLowerCase()`




How do you compare two strings in Java?


✔✔ Using the `equals()` method




Which keyword is used to stop a loop immediately?


✔✔ break




What happens when a method does not return a value but tries to return something?


✔✔ Compilation error




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, How do you access the first element of an array?


✔✔ `array[0]`




Which operator is used to find the remainder of a division?


✔✔ `%`




What will `System.out.println("Java".charAt(2));` print?


✔✔ v




What will be the output of `System.out.println();`?


✔✔ 3




How do you handle exceptions in Java?


✔✔ Using try-catch blocks




What does `this` keyword refer to?


✔✔ The current instance of the class




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