Java Programming Fundamentals Quiz

What is the correct way to declare a variable to store whole numbers in Java?

• `int number = 1.0;`

• `double number = 1;`

• `int number = 1;`

• `number = 1;`

Which of the following data types is used to store a single character in Java?

• `String`

• `char`

• `int`

• `boolean`

Which of the following is the correct syntax for an if statement in Java?

• `if x > 10:`

• `if (x > 10)`

• `if (x > 10) {}`

• `if x > 10 {}`

What is the output of the following code snippet? ```java int a = 10; if (a == 10) { System.out.println("Ten"); } else { System.out.println("Not Ten"); } ```

• Ten

• Not Ten

• Error

• None of the above

What is the correct way to define a method in Java that calculates the sum of two numbers and returns the result?

• `function sum(int a, int b) { return a + b; }`

• `int sum(int a, int b) { return a + b; }`

• `void sum(int a, int b) { return a + b; }`

• `sum(int a, int b) => a + b;`

Which keyword is used to create a constant variable in Java?

• `constant`

• `const`

• `final`

• `static`

What is the purpose of the `break` statement in Java?

• To exit a method

• To stop a loop immediately

• To skip the current iteration of a loop

• To terminate a program

Which of the following is true about the `switch` statement in Java?

• It works with numeric types only.

• It can be used with strings.

• It does not support the `default` case.

• Each case block needs a `break` statement.

What is the return type of a method that does not return any value?

• `null`

• `void`

• `0`

• `None`

What is wrong with the following "skeleton" of a Java program?

public class MyClass

{

pubic static void main(String args[])

{

}

}

• public and class on the first line should be interchanged

• MyClass name is wrong

• There should not be a [] after args

• Nothing is wrong