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Articles by Anvi Jain
Page 23 of 43
C++ Program to Generate Random Partition out of a Given Set of Numbers or Characters
This is a C++ program to generate Random Partition out of a given set of numbers or characters.AlgorithmBegin Take the integers or characters as input. For choice 1: Take the input of the n integer array. Assign l = 0 to traverse the array. Using rand(), generate random integer partition of n. For each partition i, print next i integer from index value l. For choice is 2: Take the input of a string in ch[]. Calculate the length ...
Read MoreHow to center a Window in Java?
To center a Window in Java, use the getCenterPoint() method. Set the width and height and use the below formulae to set bounds −Point center = GraphicsEnvironment.getLocalGraphicsEnvironment().getCenterPoint(); int width = 500; int height = 200; frame.setBounds(center.x - width / 2, center.y - height / 2, width, height);The following is an example to center a window −Examplepackage my; import java.awt.GraphicsEnvironment; import java.awt.GridLayout; import java.awt.Point; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPasswordField; import javax.swing.JTextField; import javax.swing.SwingConstants; public class SwingDemo { public static void main(String[] args) throws Exception { JFrame.setDefaultLookAndFeelDecorated(true); JFrame frame = new JFrame("Register!"); ...
Read MoreHow to disallow resizing component with GridBagLayout in Java
To disallow resizing component with GridBagLayout, use the GridBagConstraints NONE constant −GridBagConstraints gbc = new GridBagConstraints(); gbc.fill = GridBagConstraints.NONE;The following is an example to disallow resizing component with GridBagLayout −Examplepackage my; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JTextArea; import javax.swing.WindowConstants; public class SwingDemo { public static void main(String[] args) { JFrame frame = new JFrame("Demo Frame"); JPanel panel = new JPanel(); GridBagLayout layout = new GridBagLayout(); panel.setLayout(layout); GridBagConstraints gbc = new GridBagConstraints(); gbc.fill = GridBagConstraints.NONE; ...
Read MoreHow to create a Borderless Window in Java?
To create a borderless window in Java, do not decorate the window. The following is an example to create a BorderLess Window −Examplepackage my; import java.awt.GraphicsEnvironment; import java.awt.GridLayout; import java.awt.Point; import javax.swing.JLabel; import javax.swing.JPasswordField; import javax.swing.JTextField; import javax.swing.JWindow; import javax.swing.SwingConstants; public class SwingDemo { public static void main(String[] args) throws Exception { JWindow frame = new JWindow(); JLabel label1, label2, label3; frame.setLayout(new GridLayout(2, 2)); label1 = new JLabel("Id", SwingConstants.CENTER); label2 = new JLabel("Age", SwingConstants.CENTER); label3 = new JLabel("Password", SwingConstants.CENTER); ...
Read MoreC++ Program to Implement Treap
This is a C++ program to implement Treap. Treap data structure is basically a randomized binary search tree. Here, we shall consider insert, delete and search operations on this.Functions and descriptionsfunction rotLeft() for left rotationFirst rotate the tree then set new root.function rotRight() for right rotationFirst rotate the tree then set new root.function insetNod() to insert a given key into treap with priority recursively −If root = nullptr return data as root. If given data is less then root node, Insert data in left subtree. Rotate left if heap property violated. else Insert data in right ...
Read MoreCan I get the node at a specified index in a JTree with Java?
To get the node at a specified index in a JTree, use the getChildAt() method. Here, we are finding the node at index 3 i.e. 4th node −node.getChildAt(3)The following is an example to get the node at a specified index in a JTree −Examplepackage my; import javax.swing.JFrame; import javax.swing.JTree; import javax.swing.tree.DefaultMutableTreeNode; public class SwingDemo { public static void main(String[] args) throws Exception { JFrame frame = new JFrame("Demo"); DefaultMutableTreeNode node = new DefaultMutableTreeNode("Products"); DefaultMutableTreeNode node1 = new DefaultMutableTreeNode("Clothing (Product1 - P66778)"); DefaultMutableTreeNode node2 = new DefaultMutableTreeNode("Accessories (Product2 ...
Read MoreC++ Program to Repeatedly Search the Same Text (such as Bible by building a Data Structure)
This is a C++ program to repeatedly search the same text.AlgorithmsBegin Take the original string and pattern to be searched as input. org_len = store the length of original string pat_len = store the length of pattern for i = 0 to (org_len - pat_len) for j = 0 to pat_len - 1 if (org[i + j] != patt[j]) if (j == pat_len) Increase m. Print the position at which the pattern is ...
Read MoreCustom Notification Sounds for Android Oreo and Beyond?
This example demonstrate about Custom Notification Sounds for Android Oreo and BeyondStep 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 a sound into raw folderStep 4 − Add the following code to src/MainActivity.javapackage app.tutorialspoint.com.notifyme ; import android.app.NotificationChannel ; import android.app.NotificationManager ; import android.content.ContentResolver ; import android.content.Context ; import android.graphics.Color ; import android.media.AudioAttributes ; import android.net.Uri ; import android.support.v4.app.NotificationCompat ; import android.support.v7.app.AppCompatActivity ; import android.os.Bundle ; import android.view.View ; ...
Read MoreDifference between files written in binary and text mode in C++
Text modeBinary modeIn text mode various character translations are performed i.e;“\r+\f” is converted into “”In binary mode, such translations are not performed.To write in the files:ofstream ofs (“file.txt”);Orofstream ofs;ofs.open(“file.txt”);to write in the files: ofstream ofs(“file.txt”, ios::binary);orofstream ofs;ofs.open(“file.txt”, ios::binary);To add text at the end of the file:Ofstream ofs(“file.txt”, ios::app);orofstream ofs;ofs.open(“file.txt”, ios::app);To add text at the end of the file:Ofstreamofs(“file.txt”, ios::app|ios::binary);or ofstream ofs;ofs.open(“file.txt”, ios::app|ios::binary);To read files:ifstream in (“file.txt”);orifstreamin ; in.open(“file.txt”);To read files: ifstream in (“file.txt”, ios::binary);orifstream in ;in.open(“file.txt”, ios::binary);
Read MoreAdd multiple number input fields with JOptionPane and display the sum in Console with Java
At first, set multiple number input fields −JTextField text1 = new JTextField(10); JTextField text2 = new JTextField(10); JTextField text3 = new JTextField(10); JTextField text4 = new JTextField(10); JTextField text5 = new JTextField(10); JTextField text6 = new JTextField(10); JTextField text7 = new JTextField(10); JTextField text8 = new JTextField(10); panel.add(text1); panel.add(text2); panel.add(text3); panel.add(text4); panel.add(text5); panel.add(text6); panel.add(text7); panel.add(text8);Now, let us add the values of the multiple number input fields created above −System.out.println(Integer.parseInt(text1.getText()) + Integer.parseInt(text2.getText()) + Integer.parseInt(text3.getText())+ Integer.parseInt(text4.getText())+ Integer.parseInt(text5.getText())+ Integer.parseInt(text6.getText())+ Integer.parseInt(text7.getText())+ Integer.parseInt(text8.getText()));Above, we have displayed the sum in the Console.The following is an example to sum multiple number input fields with ...
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