java qna

Example import java.awt.Toolkit; import java.awt.Dimension; public class javaScreenSizeExample { public static void main(String[] args) { Toolkit toolkit = Toolkit.getDefaultToolkit(); Dimension screenSize = toolkit.getScreenSize(); System.out.println("Screen size: " + screenSize.width + "x" …

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01. Example: import java.util.Scanner; class bubbleSort { public static void main(String[] args) { int n, c, d, swap; Scanner in = new Scanner(System.in); System.out.println("Input number of integers to sort: "); …

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01. Example: import java.util.Scanner; class BinarySearch { public static void main(String args[]) { Scanner in = new Scanner(System.in); System.out.println("Enter number of elements in the array: "); int numberOfElements = in.nextInt(); …

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01. Example: import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Locale; public class simpleDateFormatManipulation { public static void main(String[] args) { Date date = new Date(); System.out.println("Date Format And Manipulationn___________________________________"); SimpleDateFormat …

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01. Example: import java.sql.Date; public class StringToSQLDateExample { public static void main(String[] args) { String dataString = "2023-02-12"; Date sqlDate = Date.valueOf(dataString); System.out.println(sqlDate); } } Output: 2023-02-12 This Java code …

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01. Example: import java.util.*; class generateRandomNumbers { public static void main(String[] args) { int c; Random r = new Random(); for (c = 1; c <= 4; c++) { System.out.println(r.nextInt(100)); …

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01. Example: import java.util.Scanner; class linearSearch { public static void main(String args[]) { int c, n, search, array[]; Scanner in = new Scanner(System.in); System.out.print("Enter Number Of Elements In Array: "); …

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01. Example: import java.util.*; import java.io.*; class openNotepad { public static void main(String[] args) { Runtime cmd = Runtime.getRuntime(); try { cmd.exec("notepad"); } catch (IOException e) { System.out.println(e); } } …

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01. Example: import java.net.InetAddress; class getIPAddress { public static void main(String args[]) throws Exception { System.out.println("You IP Address: " + InetAddress.getLocalHost()); } } Output: You IP Address: 50ebdf8d6ef6/172.17.0.8

01. Example: import java.util.*; class runGarbageCollection { public static void main(String s[]) throws Exception { Runtime data = Runtime.getRuntime(); System.out.println("Free Memory In JVM Before Garbage Collection = "+ data.freeMemory()); data.gc(); …

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