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Articles on Trending Technologies
Technical articles with clear explanations and examples
Java Program to convert ASCII code to String
To convert ASCII to string, use the toString() method. Using this method will return the associated character.Let’s say we have the following int value, which works as ASCII for us.int asciiVal = 89;Now, use the toString() method.String str = new Character((char) asciiVal).toString();Examplepublic class Demo { public static void main(String []args) { int asciiVal = 87; String str = new Character((char) asciiVal).toString(); System.out.println(str); } }OutputW
Read MoreSplit String with Comma (,) in Java
Let’s say the following is our string.String str = " This is demo text, and demo line!";To split a string with comma, use the split() method in Java.str.split("[,]", 0);The following is the complete example.Examplepublic class Demo { public static void main(String[] args) { String str = "This is demo text, and demo line!"; String[] res = str.split("[,]", 0); for(String myStr: res) { System.out.println(myStr); } } }OutputThis is demo text and demo line!
Read MoreHow to check if a C/C++ string is an int?
There are several methods to check that string is an int or not and one of those method is to use isdigit() to check the string.Here is an example to check whether a string is an int or not in C++ language,Example#include #include using namespace std; int main() { char str[] = "3257fg"; for (int i = 0; i < strlen(str); i++) { if(isdigit(str[i])) cout
Read MoreArray Copy in Java
Array in Java can be copied to another array using the following ways.Using variable assignment. This method has side effects as changes to the element of an array reflects on both the places. To prevent this side effect following are the better ways to copy the array elements.Create a new array of the same length and copy each element.Use the clone method of the array. Clone methods create a new array of the same size.Use System.arraycopy() method. The arraycopy() can be used to copy a subset of an array.ExampleCreate a java class named Tester.Tester.javapublic class Tester { public static ...
Read MoreHow to find Min/Max numbers in a java array?
You can find the minimum and maximum values of an array using for loops −Examplepublic class MinAndMax { public int max(int [] array) { int max = 0; for(int i=0; imax) { max = array[i]; } } return max; } public int min(int [] array) { int min = array[0]; for(int i=0; i
Read MoreHow to convert string to array of integers in java?
You can convert a String to integer using the parseInt() method of the Integer class. To convert a string array to an integer array, convert each element of it to integer and populate the integer array with them.Exampleimport java.util.Arrays; public class StringToIntegerArray { public static void main(String args[]) { String [] str = {"123", "345", "437", "894"}; int size = str.length; int [] arr = new int [size]; for(int i=0; i
Read MoreWhat is the difference between class variables and instance variables in Java?
Following are the notable differences between Class (static) and instance variables. Instance variables Static (class) variables Instance variables are declared in a class, but outside a method, constructor or any block. Class variables also known as static variables are declared with the static keyword in a class, but outside a method, constructor or a block. Instance variables are created when an object is created with the use of the keyword 'new' and destroyed when the object is destroyed. Static variables are created when the program starts and destroyed when the program stops. ...
Read MoreHow to pass Arrays to Methods in Java?
You can pass arrays to a method just like normal variables. When we pass an array to a method as an argument, actually the address of the array in the memory is passed (reference). Therefore, any changes to this array in the method will affect the array.Suppose we have two methods min() and max() which accepts an array and these methods calculates the minimum and maximum values of the given array respectively:Exampleimport java.util.Scanner; public class ArraysToMethod { public int max(int [] array) { int max = 0; for(int i=0; imax) { ...
Read More7 Best Wearable Health Monitors in 2025
Wearable health monitors are used to track our body's activities and functionalities. In this article, I will discuss the 7 best health monitors such as smartwatches and smart rings, their features, and prices. Wearable Health Monitors Wearable Health monitors are smart devices that can track health information such as rate of heartbeat, sleeping patterns, and physical activity. These devices can be worn on your wrist, finger, or any other part of your body. The sensors attached to these devices will collect data from your body and that will be available on your smartphone or computer for tracking and analysis. ...
Read MoreBinary Search Tree to Greater Sum Tree in C++
In this article, we are given a binary search tree. Our task is to transform the given BST to a Greater Sum tree. A Greater Sum Tree with respect to the given BST is a tree where each node's value is replaced by the sum of all values greater than that node's value in the original BST. Below is an example scenarios to convert the given BST to a Greater Sum Tree: Example Scenario Input: BST inorder traversal= {0, 1, 2, 3, 4, 5, 6, 7, 8} Output: Greater Sum Tree = {36, 35, 33, 30, 26, 21, 15, ...
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