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Quiz 1
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Q.1
Which sentence is correct?
He doing the homework
He do the homework
He does the homework
He was not do the homework
Q.2
Full form of COM
Component Object Model
Commercial Object Model
Q.3
Predict the output of following Java Programs. // filename Main.java class Test { protected int x, y; } class Main { public static void main(String args[]) { Test t = new Test(); System.out.println(t.x + " " + t.y); } }
1,1
1,2
0,0
Error
Q.4
When was Java released?
1975
1994
1995
1996
1997
Q.5
Use the following declaration and initialization to evaluate the Java expressions int a =b =c =d = float k = 4.3f; System.out.println (c=c++);
2
4
5
8
Q.6
Consider the following class definition: public class MyClass { private int value; public void setValue(int i){ / code / } // Other methods… } The method setValue assigns the value of i to the instance field value. What could you write for the implementation of setValue?
value = i;
this.value = i;
value == i;
Both (A) and (B) and above
Q.7
Which of the following variable declaration would NOT compile in a java program?
int var;
int VAR;
int var1;
int 1_var;.
Q.8
Which one of these events will cause the thread to die?
on calling the sleep() method.
when the execution of the run() method ends
when the execution of the start() method ends
on calling the wait() method
Q.9
Which of the following is wrapper class in java
Float
Integer
Double
all of above
Q.10
Which of the followings are the types of JIT?
Pre-JIT
Econo-JIT
Normal-JIT
All of the above
Q.11
Predict the output of following Java programs. package main; class Base { public void Print() { System.out.println("Base"); } } class Derived extends Base { public void Print() { System.out.println("Derived"); } } class Main{ public static void DoPrint( Base o ) { o.Print(); } public static void main(String[] args) { Base x = new Base(); Base y = new Derived(); Derived z = new Derived(); DoPrint(x); DoPrint(y); DoPrint(z); } }
Base, Derived, Derived
Derived, Derived ,Derived
Derived, Derived, Base
None
Q.12
Consider the following Java program :
===============
################# &&&&&&&&&
&&&&&&&&&&&
=============== #################
Q.13
What will be printed as the output of the following program? public class testincr { public static void main(String args[]) { int i = i = i++ + i; System.out.println(“I = ” +i); } }
I=0
I=1
I=2
Error
Q.14
The StringBuilder class is a thread-safe, while StringBuffer is not.
True
False
Q.15
This method is used to extract data from result set
next()
getString()
Q.16
These objects hold data retrieved from a database after you execute an SQL query
Statement
DataSet
Connection
ResultSet
Q.17
What are valid keywords
Implements
All of above
Q.18
Default Web Server in Spring Boot Application is
Apache Tomcat
Jetty
Netty
Undertow
Q.19
Which of the ApplicationContext Object is associated with Spring MVC Application
ClassPathXMLApplicationContext
AnnotationConfigApplicationContext
WebApplicationContext
DefaultListableBeanFactory
Q.20
A thin driver is
Type 1 driver
Type 2 driver
Type 3 driver
Type 4 driver
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