What will be the result of using super() and this() in the same method?
a) It will compile and run successfully
b) It will compile successfully, but will give a runtime error
c) It will give a compile-time error
d) Successful compilation and running will depend on the order in which super() and this() are used
Created by Nancy K.A.N.
@00:23 30-09-2025
I am Nancy. I worked in the IT sector for many years in different roles and so was in life. I created Digital technical content for many years later in my career. I have created YouTube channels for Cooking Recipes, Programming, and Nature.
I recently published a Couring books for Adults.
An Externalizable interface extends Serializable. Which of the following methods does an Externalizable interface add?
a) WriteData
b) WriteObject
c) WriteExternal
d) ReadData
e) ReadObject
f) ReadExternal
Created by Nancy K.A.N.
@00:44 28-Sept-2025
I am Nancy. I worked in the IT sector for many years in different roles and so was in life. I created Digital technical content for many years later in my career. I have created YouTube channels for Cooking Recipes, Programming, and Nature.
I recently published a Couring books for Adults.
Which of the following is not a method of a Serializable interface?
a) write()
b) serialize()
c) convertToBytes()
d) none (It has no methods)
Created by Nancy K.A.N.
@12:17 24-Sept-2025
I am Nancy. I worked in the IT sector for many years in different roles and so was in life. I created Digital technical content for many years later in my career. I have created YouTube channels for Cooking Recipes, Programming, and Nature.
I recently published a Couring books for Adults.
Which of the following is a superclass of all exceptions and Errors in Java?
a) Exception
b) RuntimeException
c) Throwable
d) Error
Created by Nancy K.A.N.
@14:04 22-Sept-2025
I am Nancy. I worked in the IT sector for many years in different roles and so was in life. I created Digital technical content for many years later in my career. I have created YouTube channels for Cooking Recipes, Programming, and Nature.
I recently published a Couring books for Adults.
Which of the following methods of the Java String class is deprecated?
a) getBytes(String)
b) getBytes(int, int,byte[],int)
c) getBytes(int,int,char[],int)
d) getBytes(charset)
Created by Nancy K.A.N.
@11:44 18-09-2025
I am Nancy. I worked in the IT sector for many years in different roles and so was in life. I created Digital technical content for many years later in my career. I have created YouTube channels for Cooking Recipes, Programming, and Nature.
I recently published a Couring books for Adults.
One of the features of Java is auto-garbage collection. It frees the coder from keeping track of deallocating memory, though you can request garbage collection.
Which of the following can request garbage collection?
a) Runtime.free()
b) Runtime.getRuntime().gc()
c) System.gc()
d) System.clear()
Created by Nancy K.A.N.
@12:46 15-09-2025
I am Nancy. I worked in the IT sector for many years in different roles and so was in life. I created Digital technical content for many years later in my career. I have created YouTube channels for Cooking Recipes, Programming, and Nature.
I recently published a Couring books for Adults.
What will be the output of compiling and executing the following code?
a) -4
b) 4
c) 4.563
d) Compile-time error: Invalid argument type
Created by Nancy K.A.N.
@12:01 12-Sept-2025
I am Nancy. I worked in the IT sector for many years in different roles and so was in life. I created Digital technical content for many years later in my career. I have created YouTube channels for Cooking Recipes, Programming, and Nature.
I recently published a Couring books for Adults.
Which of the following interfaces does the InputStream class implement?
a) Serializable
b) SeekableByteChannel
c) Closeable
d) Flushable
Created by Nancy K.A.N.
@12:36 10-Sept-2025
I am Nancy. I worked in the IT sector for many years in different roles and so was in life. I created Digital technical content for many years later in my career. I have created YouTube channels for Cooking Recipes, Programming, and Nature.
I recently published a Couring books for Adults.
Which of the following methods can be used to create a copy of the object on which it is called?
a) copy
b) copyObject()
c) clone()
d) duplicate()
e)CloneCurrentObject()
Created by Nancy K.A.N.
@13:32 08-Sept-2025
I am Nancy. I worked in the IT sector for many years in different roles and so was in life. I created Digital technical content for many years later in my career. I have created YouTube channels for Cooking Recipes, Programming, and Nature.
I recently published a Couring books for Adults.
The Java Process class provides methods for:
I am Nancy. I worked in the IT sector for many years in different roles and so was in life. I created Digital technical content for many years later in my career. I have created YouTube channels for Cooking Recipes, Programming, and Nature.
I recently published a Couring books for Adults.
Which of the following is a superclass of java.lang.Math class?
a) System
b) Process
c) Integer
d) Object
Created by Nancy K.A.N.
@14:52 02-Sept-2025
I am Nancy. I worked in the IT sector for many years in different roles and so was in life. I created Digital technical content for many years later in my career. I have created YouTube channels for Cooking Recipes, Programming, and Nature.
I recently published a Couring books for Adults.
