Java Practice Questions and Answers Latest Update Already Passed

Java Practice Questions and Answers Latest Update Already Passed What keyword is used to create a subclass in Java? extends How do you define a constant variable in Java? Use the `final` keyword Which method is automatically called when an object is created? Constructor What will `Sln(10 / 3);` print in Java? 3 How do you handle exceptions in Java? Using try-catch blocks 2 What keyword is used to prevent method overriding? final How do you stop a loop immediately in Java? break Which Java collection does not allow duplicate values? HashSet How do you check if two strings are equal in Java? Using `equals()` method What is the entry point of a Java application? `public static void main(String[] args)` How do you create an object in Java? Using `new` keyword 3 Which operator is used to compare two values in Java? == How do you get the length of an array in Java? Using `h` What is the parent class of all Java classes? Object Which loop ensures execution at least once? do-while How do you declare an interface in Java? Using `interface` keyword What is used to read user input in Java? Scanner class 4 Which method is used to convert a string to an integer? `IInt()` How do you define a method that cannot be overridden? Declare it as `final` What is the default value of a boolean variable in Java? false How do you create a thread in Java? Extend `Thread` or implement `Runnable` Which keyword is used to refer to the current object? this What will `Sln(5 == 5.0);` print? true 5 Which keyword is used to implement an interface in Java? implements What does `M(16);` return? 4.0