Java Basics

1.		What is the output of the following code? public class Test { public static void main(String args[]) { int x = 10; int y = 5; System.out.println(x > y); } }

1

0

1

0

2.		Which of the following is NOT a valid way to create an object in Java?

MyClass object = new MyClass();

MyClass object = MyClass();

MyClass object;

MyClass object = null;

3.

What is the output of the following program?

public class Test {
public static void main(String args[]) {
int x = 10;
int y = x++;
System.out.println(y);
}
}

10

11

9

None of the above

4.

What is the output of the following code?

public class Test {
public static void main(String args[]) {
int x = 10;
int y = 5;
if(x > y) {
System.out.println("x is greater than y");
} else {
System.out.println("x is less than or equal to y");
  }
 }
}

x is greater than y

x is less than or equal to y

Both statements are printed

No output

5.		What is the output of the following code? public class Test { public static void main(String args[]) { String name = "Java"; System.out.println(name.substring(1, 3)); } }

Ja

av

Jav

No output

6.		What is the output of the following code? public class Test { public static void main(String args[]) { for(int i = 0; i < 5; i++) { System.out.println(i); } } }

0 1 2 3 4

1 2 3 4 5

0 1 2 3 4 5

Infinite loop

7.		Which of the following is NOT a valid access modifier in Java?

public

private

protected

static

8.		Which of the following is NOT a valid way to create a thread in Java?

Implementing the Runnable interface

Extending the Thread class

Calling the start() method on a Thread object

Creating a new instance of the Thread class

9.		Which of the following is NOT a primitive data type in Java?

int

boolean

double

string

10.		What is the output of the following code? public class Test { public static void main(String args[]) { int x = 10; int y = 20; System.out.println(x < y && x > 5); } }

1

0

1

0