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To sort an array in Java, you need to compare each element of the array to all the remaining elements and verify whether it is greater if so swap them.One solution to do so you need to use two loops (nested) where the inner loop starts with i+1 (where i is the variable of outer loop) to avoid repetitions in comparison.Exampleimport java.util.Arrays; import java.util.Scanner; public class ArrayInOrder { public static void main(String args[]) { Scanner sc = new Scanner(System.in); System.out.println("Enter the size of the array that is to be created::"); ... Read More
You can convert a double array to a string using the toString() method. To convert a double array to a string array, convert each element of it to string and populate the String array with them.ExampleLive Demoimport java.util.Arrays; public class DoubleArrayToString { public static void main(String args[]) { Double[] arr = {12.4, 35.2, 25.6, 98.7, 56.4}; int size = arr.length; String[] str = new String[size]; for(int i=0; i
Length is a filed in java, it gives the total number of the elements in a Java array. The length of an array is defined after the array was created.Integer[] myArray = {23, 93, 56, 92, 39}; System.out.println(myArray.length);
The com.google.gson.JSonElement class represents an element of Json. We can use the toJsonTree() method of Gson class to serialize an object's representation as a tree of JsonElements. We can add/ insert an additional property to JSON string by using the getAsJsonObject() method of JSonElement. This method returns to get the element as JsonObject.Syntaxpublic JsonObject getAsJsonObject()Exampleimport com.google.gson.*; public class AddPropertyGsonTest { public static void main(String[] args) { Gson gson = new GsonBuilder().setPrettyPrinting().create(); // pretty print JSON Student student = new Student("Adithya"); String jsonStr = gson.toJson(student, Student.class); System.out.println("JSON String: " + jsonStr); ... Read More
To move an element from one position to other (swap) you need to –Create a temp variable and assign the value of the original position to it.Now, assign the value in the new position to original position.Finally, assign the value in the temp to the new position.ExampleLive Demoimport java.util.Arrays; public class ChangingPositions { public static void main(String args[]) { int originalPosition = 1; int newPosition = 1; int [] myArray = {23, 93, 56, 92, 39}; int temp = myArray[originalPosition]; myArray[originalPosition] = myArray[newPosition]; myArray[newPosition] = temp; System.out.println(Arrays.toString(myArray)); } }Output[23, 39, 56, 92, 93]
You can declare an array just like a variable −int myArray[];You can create an array just like an object using the new keyword −myArray = new int[5];You can initialize the array by assigning values to all the elements one by one using the index −myArray [0] = 101; myArray [1] = 102;You can access the array element using the index values −System.out.println("The first element of the array is: " + myArray [0]); System.out.println("The first element of the array is: " + myArray [1]); Alternatively, you can create and initialize an array using the flower braces ({ }): Int [] myArray = {10, 20, 30, 40, 50}
You can declare an array just like a variable −int myArray[];You can create an array just like an object using the new keyword −myArray = new int[5];You can initialize the array by assigning values to all the elements one by one using the index −myArray [0] = 101; myArray [1] = 102;You can access the array element using the index values −System.out.println("The first element of the array is: " + myArray [0]); System.out.println("The first element of the array is: " + myArray [1]); Alternatively, you can create and initialize an array using the flower braces ({ }): Int [] myArray = {10, 20, 30, 40, 50}
There are many modules available in both the standard library and the PiPy repository for date manipulation. The most popular among these libraries are the following(in no particular order) −datetime (Standard library) − The datetime module supplies classes for manipulating dates and times in both simple and complex ways. While date and time arithmetic is supported, the focus of the implementation is on efficient attribute extraction for output formatting and manipulation.time(Standard library) − This module provides various time-related functions. Although this module is always available, not all functions are available on all platforms. Most of the functions defined in this ... Read More
You can get the Python date object for last wednesday using some Python date math. Whatever the day of the week it is today, subtracting 2 from it and taking the modulus of the result by 7 will give us how back was wedenesday. examplefrom datetime import date from datetime import timedelta today = date.today() offset = (today.weekday() - 2) % 7 last_wednesday = today - timedelta(days=offset)OutputThis will give you the output −2017-12-27
A Java array is an object which stores multiple variables of the same type, it can hold primitive types and object references whereas JSONArray is an ordered sequence of values. Its external text form is a string wrapped in square brackets with commas separating the values, an internal form is an object having get() and opt() methods for accessing the values by index and element() method for adding or replacing values. In the first step, we can create an Object[] array and pass this parameter as an argument to the toJSON() of JSONSerializer class and typecasting it to get the JSON array.We can convert Object[] array to JSONArray in the below exampleExampleimport ... Read More