In Java, the “import java.io.*;” is an import statement that allows a Java program to use classes from the Java I/O (Input/Output) library. The I/O library contains classes and interfaces for performing input and output operations. The “java.io” package offers classes to read and ...
import java.sql.Connection; import java.sql.SQLException; In above example, imported classes are SQLException and Connection. These both belong to java.sql package of JDBC API. Here is an example code that uses data received using the Java JDBC API: ...
() 1. import java.util*;2. public class Quest{3.public static void main(String[ ] args){4.String[ ] colors =5."blue", "red", "green", "yellow","orange"};6.Arrays.sort(colors),7.int s2 = Arrays.binarySearch(colors, "orange");8.int s3 = Arrays.binarySearch(colors, "violet"...
import java.util.HashMap; public class Main { public static void main(String[] args) { // Create a new HashMap instance with type safety HashMap contacts = new HashMap(); // Add contacts to the HashMap contacts.put("Ram", "+919999999999"); contacts.put("Shyam", "+918888888888");...
What is the result?() 3. import java.util*;4. public class Mapit{5. pubic static void main(String[ ] args)6. Set set = new HashSet(),7.Integer i1 = 45;8.Integer i2 = 46;9. set.add(i1);10. set.add(1);11. set.add(i2); System.out.print(set.size() + " "...
importjava.util.Collections; importjava.util.HashMap; importjava.util.List; importjava.util.Map; /** * @author Crunchify.com * */ publicclassCrunchifySynchronizedListFromArrayList{ publicstaticvoidmain(String[]args){ // *** synchronizedList *** ArrayList<String>crunchifyArrayList =newArrayList<Str...
See thejava.util.function Javadocsfor more information. The coolest thing about functional interfaces is that they can be assigned to anything that would fulfill their contract. Take the following code for example: 1Function<String,String>atr=(name)->{return"@"+name;};2Function<String,Integer>...
Example (With static import): importstatic java.lang.System.out;classStaticImport{staticStrings="My Name is Preeti Jain";publicstaticvoidmain(String[]args){out.println("Length of the string is "+StaticImport.s.length());}} Output D:\Java Articles>java StaticImport Length of the string is ...
import java.io.*; public class WhatAmI {public static void main(String args[]) {char ch, *=0;try {or(int i =0; i< 10; i++) {System. out.print("Enter a char:"); ch = (char)System. in.read(); if(ch>*) *= ch; System. in. skip(2);} System.out.println(*);} catc...
What is the result?() 12. import java.util*;13. public class Explorer3{14. public static void main(String[ ] args)15. TreeSet s = new TreeSet();16. TreeSet subs = new TreeSet()17. forint i=606; i<613, i++) 18.i(i%2 == 0)s.add(i);19. subs =(TreeSet)s....