Any one from Java full stack venkatesh maipathi sir?
Can anyone send management details to join java full stack developer course?
Anyone joining python 11Am class by KVR sir?
any group for java coding?
Is AWS is a prerequisite of devops?
No class defination error?
What is servlet?
(Full time freelancing )
Java developer
Experience :
6+ Year
Timing : 10 am to 7 pm
Package : 70 k per month
Location : WFH
vacancy : 3
contact
Number : 9-6-9-8-2,2,4,9,8,8
preferably India location
skill sets
Java
Micro services
Spring boot
Rest API
Pls post for freshers interviews
public static void main(String args[]) {
String name = “MADAM”;
System.out.println(“Reverse:: ” + new StringBuilder(name).reverse());
}
}
public static void main(String args[]) {
String name = “MADAM”;
System.out.println(“Reverse:: ” + new StringBuilder(name).reverse());
}
}
How to write without using string builder…
public class MyClass {
public static void main(String args[]) {
String name = “123”;
int i = 0, j = name.length()-1;
char[] duplicateStrArr = name.toCharArray();
while(i < j) {
char chr = duplicateStrArr[i];
duplicateStrArr[i] = duplicateStrArr[j];
duplicateStrArr[j] = chr;
++i; –j;
}
System.out.println(“Reverse:: ” + new String(duplicateStrArr));
}
}
Ok
Yes
This occurs when the Class Loader is trying to load classes using
Class.forName(),
ClassLoader.loadClass() or ClassLoader.findSystemClass()
but no definition for the class with the specified name is found.
The java.lang.ClassNotFoundException is a checked exception in java so it must be explicitly handled in methods which can throw this exception – either by using a try-catch block or by throwing it using the throws clause.
public class ClassNotFoundException extends ReflectiveOperationException
Ex:-
when a JDBC driver is attempted to be loaded using Class.forName() and the driver’s JAR file is not present in the classpath.
where we can practice
No
@mr.vinny i am joined
when an ArrayList is initialized, a default capacity of 10.
No default capacity in a LinkedList. In LinkedList, an empty list is created when a LinkedList is initialised.
Additional memory is required for LinkedList(LL) in order to store the nextNode and element whereas ArrayList(AR) doesn’t require any extra memory.
Internal Data structure:
AL -> dynamic array
LL -> Doubly Linked List
ArrayList only implements List, LinkedList implements Both List and Queue.
O(1) time complexity for a search operation and a linked list has O(n/2) complexity.
To Explore:-
LL-> descendingIterator()😊
public class ChooseOptionEX {
public static void main(String[] args) {
System.out.println(10+20+”Cap”);
System.out.println(“Cap”+10+20);
}
}
//choose one option.
A 1020Cap
Cap1020
B 30Cap
Cap30
C 30Cap
Cap1020
D Cap1020
Cap30
C
If both arguments are number + operater act as addition
If atleast one argument is string + operater act as string concatenation
Enroll Now: https://bit.ly/3xvElqb
Free Demo On Advanced Java by Mr. Nataraj.
Demo On: 22nd September @ 4:00 PM (IST)
Join us on Telegram: https://t.me/javalatestupdates
Enroll Now: https://bit.ly/3xvElqb
Free Demo On Advanced Java by Mr. Nataraj.
Demo On: 22nd September @ 4:00 PM (IST)
Join us on Telegram: https://t.me/javalatestupdates
4.00 or 9.00
Any one from Java full stack venkatesh maipathi sir?
Yes iam
Enroll Now: https://bit.ly/3xvElqb
Free Demo On Advanced Java by Mr. Nataraj.
Demo On: 22nd September @ 4:00 PM (IST)
Join us on Telegram: https://t.me/javalatestupdates
What is servlet?
What is servlet?
It’s backend technology of java, part of java enterprise edition.
No
Ok Thanqq
What is servlet?
it is specification used to develop web-applications by using java lang
No class defination error?
NoClassDefFoundError:-
This occurs when compiler has successfully compiled the class, but the Class Loader is not able to locate the class file at the runtime.