What is the difference between JDK,JRE & JVM ?
Ans :- JDK :- JDK stands for “Java Development Kit” and which is the collection of …
Month: December 2023
Q. Write a simple program to swap the numbers.
Like if we have – a=20; b=30; I want a=30; and b=20; SOLUTION :- package p1; …
How to sort elements in Ascending and Descending Order?
SOLUTION :- package mv; import java.util.ArrayList;import java.util.Collections;import java.util.List; public class AscendingAndDescendingIntegers { }
What is flatMap() ? Write code for flatMap.
Ans:- flatMap() :- flatMap() transform each element and flattern the resulting collection into a single combined …
How to find Count of element using stream?
Solution :- we will use Map to find Count of element using stream package p2; import …
How to find Two digit element in this Array int[] abc= {2,1,3,44,52,23}; using For-Loop.
SOLUTION :- package p3; public class ArrayTwoDigitCount { public static void main(String[] args) { int[] abc= …
How to find Two digit element in this Array int[] abc= {2,1,3,44,52,23}; using For-Loop. Read more →
What is the Difference between Collection and Collections ?
Ans :- the main difference between Collection and Collections :- 1.Collection<E> 2.Collections 1.Collection<E> => Collection <E> …
What is the Difference between Collection and Collections ? Read more →
Difference between Vector and Arraylist in Java
In Java ArrayList and Vector classes both are implements List Interface, and both are using resizable …
How to remove duplicate element by using Java 8 feature?
Solution :- import java.util.ArrayList; import java.util.Arrays; import java.util.List; import java.util.stream.Collectors; public class DuplicateElement { public static …
How to remove duplicate element by using Java 8 feature? Read more →