Programming Articles - Page 2976 of 3366

In this article, we will learn how to print a diamond shape pattern using nested loops in Java. This helps in understanding loops and conditional structures in Java programming.A nested loop refers to a loop placed within another loop. This structure is often called "loops within loops" because the inner loop runs completely each time the outer loop iterates.Diamond Shape A diamond shape is a symmetrical pattern that consists of two parts: an upper triangle and a mirrored inverted triangle below it. In programming, such patterns are typically printed using nested loops to control spaces and symbols. A diamond ... Read More

In this article, we will learn to create a basic calculator using Java. With a basic calculator, we can add, subtract, multiply, or divide two numbers. This is done using a switch case. A program that demonstrates this is given as follows − Problem Statement Write a program in Java to create a basic calculator for performing the basic arithmetic operations − Input Enter two numbers: 23Enter an operator (+, -, *, /): + Output The result is given as follows:2.0 + 3.0 = 5.0 Steps to create basic calculator Following are the steps to create a basic calculator program using ... Read More

The common elements in three sorted arrays are those elements that occur in all three of them. In this article, we will learn how to find common elements from three sorted arrays in Java. An example of this is given as follows − Example Scenario: Input 1: arr1 = [1, 3, 5, 7, 9] Input 2: arr2 = [2, 3, 6, 7, 9] Input 3: arr3 = [1, 2, 3, 4, 5, 6, 7, 8, 9] Output: Common elements = 3 7 9 Here, arrays are data structure which stores a fixed-size sequential collection of elements of the same ... Read More

Android AsyncTask going to do background operation on background thread and update on main thread. In android we cant directly touch background thread to main thread in android development. asynctask help us to make communication between background thread to main thread.Methods of AsyncTaskonPreExecute() − Before doing background operation we should show something on screen like progressbar or any animation to user. we can directly comminicate background operation using on doInBackground() but for the best practice, we should call all asyncTask methods .doInBackground(Params) − In this method we have to do background operation on background thread. Operations in this method should ... Read More

Android supports both gravity and layout_gravity. Gravity adjusts view position. Using gravity we can do alignment of view as shown below.In the above code Textview going to set in middle of parent layout.Properties of GravityCenter − it going to put view in center of parent layout.Right − it going to put view in right of parent layout.Left − it going to put view in left of parent layout.End − it going to put view in end position of parent layout.Start − it going to put view in start position of parent layout.Top − It going to put view in Top ... Read More

The number of times a word occurs in a string denotes its occurrence count. An example of this is given as follows −String = An apple is red in colour. Word = red The word red occurs 1 time in the above string.A program that demonstrates this is given as follows.Example Live Demopublic class Example { public static void main(String args[]) { String string = "Spring is beautiful but so is winter"; String word = "is"; String temp[] = string.split(" "); int count = 0; for (int i = 0; i < temp.length; i++) { if (word.equals(temp[i])) count++; } System.out.println("The string ... Read More

There are so many cases, we should create dynamic view rather than creating view in XML. In that scenario, we should need to get the dimensions of a view. So here is a simple solution to get the dimensions of a view in android.To get the height of any view use the following codeint width = view.getMeasuredHeight();To get the width of any view use the following codeint height = view.getMeasuredWidth();Before get the width and height, we should assign default measure for a view as shown belowview.measure(0, 0);In the above code view is like either textview ,editText, button ..etc. Here is ... Read More

Extraction of k bits from the given position in a number involves converting the number into its binary representation. An example of this is given as follows −Number = 20 Binary representation = 10100 k = 3 Position = 2 The bits extracted are 010 which represent 2.A program that demonstrates this is given as follows.Example Live Demopublic class Example {    public static void main (String[] args) {       int number = 20, k = 3, pos = 2;       int exNum = ((1 > (pos - 1));       System.out.println("Extract " + k + ... Read More

In Some situations, we should need to show HTML as text in android. Here is the simple solution to show HTML in TextView in android.Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml.     Step 3 − Add the following code to src/MainActivity.javapackage com.example.andy.myapplication; import android.os.Bundle; import android.support.v4.text.HtmlCompat; import android.support.v7.app.AppCompatActivity; import android.widget.TextView; public class MainActivity extends AppCompatActivity {    String htmlText = "What is Android?" + "Android is an open source and Linux-based ... Read More

Problem Statement Two matrices are identical if their number of rows and columns are equal and the corresponding elements are also equal. An example of this is given as follows. Input Matrix A = 1 2 3 4 5 6 7 8 9 Matrix B = 1 2 3 4 5 6 7 8 9 The matrices A and B are identical Output Both the matrices are identical Steps to check if two given matrices are identical Following are the steps to check if two given matrices are identical − Initialize two matrices by defining two ... Read More