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6 164
Find and correct the error in the following code snippet to correctly implement encapsulation in Java.
class Student {
private int age;
public void setAge(int age) {
if(age > 0) {
this.age = age;
}
}
public int getAge() {
return age;
}
}
6 164
What is the result of attempting to compile and run a Java program with a `main` method that does not accept any arguments?
6 164
Correct the error in the following Java code snippet that tries to encapsulate a class property.
class Student {
private int age;
public getAge() {
return age;
}
public void setAge(int age) {
if(age > 0) {
this.age = age;
}
}
}
6 164
Fix the error in the following Java code snippet to correctly calculate the factorial of a number using recursion.
public int factorial(int n) {
if (n == 1)
return 1;
else
return n * factorial(n - 1);
}
6 164
Identify and fix the error in the following Java code snippet that tries to implement an abstract method in an interface.
interface Animal {
abstract void eat();
}
class Dog implements Animal {
public void eat() {
System.out.println("Dog eats");
}
}
6 164
What is the output of the following code snippet?
```java
int a = 5; int b = 2; System.out.println(a / b); ```
6 164
Fix the error in the following Java code snippet to correctly iterate over an array using a for loop.
int[] arr = {1, 2, 3, 4, 5};
for(int i = 0; i <= arr.length; i++) {
System.out.println(arr[i]);
}
6 164
What will be the output of the following Java code snippet that demonstrates the use of the ternary operator?
int a = 10, b = 5;
int result = (a > b) ? a : b;
System.out.println(result);
6 164
What is the output of the following Java code snippet that demonstrates the concept of inheritance and method overriding?
class Animal {
String shout() { return "Don't know!"; }
}
class Dog extends Animal {
String shout() { return "Woof!"; }
}
public class TestAnimal {
public static void main(String[] args) {
Animal myAnimal = new Dog();
System.out.println(myAnimal.shout());
}
}
6 164
What will be the output of the following Java code snippet demonstrating the use of abstract classes?
abstract class Shape {
abstract void draw();
}
class Rectangle extends Shape {
void draw() {
System.out.println("Drawing Rectangle");
}
}
public class Test {
public static void main(String[] args) {
Shape shape = new Rectangle();
shape.draw();
}
}
6 164
What is the correct syntax to declare a class named 'Vehicle' in Java?
6 164
What will be the output of the following Java code snippet that demonstrates the use of static variables?
class Counter {
static int count = 0;
Counter() {
count++;
System.out.println(count);
}
}
public class TestCounter {
public static void main(String[] args) {
Counter c1 = new Counter();
Counter c2 = new Counter();
Counter c3 = new Counter();
}
}
6 164
What will be the output of the following Java code snippet that uses a while loop?
int x = 0;
while(x < 5) {
System.out.print(x + " ");
x++;
}
