Core Java Quiz Questions and Answers

We use JDBC to

What will be the output of the following code?
public class Question
{
public static void main(String args[])
{
double x = 20.82;
int y = 23;
x = x % 10;
y = y % 10;
System.out.println(x + ” ” + y);
}
}

This method of collections in Java returns the result as true if the iterator contains more elements else it returns false.

Which one of these exception types is irrecoverable?

/** comment here */
This is the syntax for

Which is not a part of the “simple for loop” syntax?

Which is a way to create the exact copy of an object?

In ________, manipulation is very fast as no shifting is necessary.

With the help of Java Networking, we can

Which driver converts all the Java Database Connectivity calls directly into a vendor-specific database protocol?

if the size of a variable is int or long and all the results overflow the range of value in the Math class then which method will throw an arithmetic exception?

What is the output of this code?
public class DataFlair
{
int x=500;
public static void main(String argv[])
{
System.out.println(argv[1]+” :-The number of bears is”+x);
}
}

Which access modifier is not used for a class?

Which classes can also have the final methods or the methods that can’t be overridden?

The keyword instanceof comes under which category?

Which class is also indirectly known as the inner class in Java?

You can create a document API in Java using

The place where we can perform operations in Java are

The _____ loads, verifies, and executes the code and provides a runtime environment for it.

Which one from the following is a popular class of JDBC API?