Array in JAVA

-

Using Of Array in JAVA with Example

Array is a container or a collection which has the similar kind of data types. Array is stored in contiguous memory. In JAVA, arrays behave as an object. We can find the length and do other manipulations using the in-build functions.

For using array in the JAVA program we have to declare an array using the int data type and not long or not short. Decleration of array can be done by,


Advantages:

  • We ca access any array element randomly by using JAVA indexes provided by JAVA array.
  • Primitive type to wrapper classes object conversion will not happen so it is fast.
  • Array can store many number of elements at a time.

Disadvantages:


  • Arrays are strongly typed.
  • Arrays doesn't have add or remove method.
  • We need to mention size of array, so it's length is fixed.
  • We can't change the size of array at runtime.
Let us go through an example on the JAVA array which is used to store the data of 6 subjects(of your choice) mark and display the percentage of the student.
Happy Coding...!!!

Comments

Post a Comment

Popular posts from this blog

MultiSelection of Item in Recycler View

-
Image
Easiest Way to Implement Multi Selection of Item in Recycler View Hello friends, in this blog post I am going to show you that how one can make a multi selection functionality for items in the Recycler View So lets get started. First add the following dependencies to your project: dependencies { implementation fileTree(dir: 'libs', include: ['*.jar']) implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version" implementation 'androidx.appcompat:appcompat:1.0.2' implementation 'androidx.constraintlayout:constraintlayout:1.1.3' testImplementation 'junit:junit:4.12' androidTestImplementation 'androidx.test:runner:1.2.0' androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0' //Recycler View Dependency implementation 'androidx.recyclerview:recyclerview-selection:1.0.0' } Now in this project we have two XML layout file: For Main...
Read more

Upload Image From Android To Php Server

-
Image
Hello friends, in this tutorial we will learn how to upload an image from android to php server. Lets go for it. Prerequisites: Android Studio Xampp or Wamp Server (I am using Xampp here) Text Editor (I recommend to use Sublime) Structure of the Database: Firstly, we use our Android Studio to make our front part ready to capture the photo and get it ready to upload on the server. To get start with the actual code add the permissions and dependencies to make the project work properly. Add below permissions in the Manifests file. <uses-permission android:name="android.permission.INTERNET"></uses-permission> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"></uses-permission> And add the volley dependency in the build.gradle file of the App Module. implementation 'com.android.volley:volley:1.1.1' So, initially we make our layout for the Main Activity. Here is the layout co...
Read more

Merge Sort

-
Image
Merge Sort in C In  computer science ,  merge sort  (also commonly spelled  mergesort ) is an efficient, general-purpose,  comparison-based   sorting algorithm . Most implementations produce a  stable sort , which means that the implementation preserves the input order of  equal  elements in the sorted output. Mergesort is a  divide and conquer algorithm  that was invented by  John von Neumann  in 1945. Algorithm Conceptually, a merge sort works as follows: Divide the unsorted list into  n  sublists, each containing 1 element (a list of 1 element is considered sorted). Repeatedly merge sublists to produce new sorted sublists until there is only 1 sublist remaining. This will be the sorted list.
Read more