kunals201

import pack2.Demo2;

class Test {
    public static void main(String[] args) {
        System.out.println("Test class main");
        Demo2 obj = new Demo2();
        obj.test2();
    }
}

kunals201

package pack2;
import pack1.Demo1;

public class Demo2 {
  public void test2()
  {
    System.out.println("pack2.Demo2 method");
    Demo1 obj = new Demo1();
    obj.test();
  }

kunals201

package pack1;

public class Demo1
{
  public void test()
  {
     System.out.println("pack1.test");
  } 
}

kunals201

public class IfPresentOrElseExample {
    
    public static void main(String[] args) {
        
        List<Integer> numbers = Arrays.asList(10, 20, 30, 40, 50, 60, 70, 80, 90);
        
        Optional<Integer> first = numbers.stream().filter(a -> a > 500).findFirst();
        
        if (first.isPresent()) {
            System.out.println(first.get());

kunals201

public class IfPresentExample {
    
    public static void main(String[] args) {
        
        List<Integer> numbers = Arrays.asList(10, 20, 30, 40, 50, 60, 70, 80, 90);
    
    
                Optional<Integer> first =  numbers.stream().filter(a -> a > 500).findFirst();
        
                

kunals201

public class IntStreamIterateExample {
    
    public static void main(String[] args) {
    
    IntStream.iterate(0, i -> i<5, i -> i+2 )
            .forEach(System.out::println);
    
    }
}

kunals201

public class DropWhileExample {
    
    public static void main(String[] args) {
        
        List<Integer> numbers = Arrays.asList(11, 22, 33, 44, 55, 66, 77, 88, 99);
        
        numbers.stream()
                .dropWhile(e -> e < 55)
                .forEach(System.out::println);
    }

kunals201

public class SkipExample {
    
    public static void main(String[] args) {
        
        List<Integer> numbers = Arrays.asList(11, 22, 33, 44, 55, 66, 77, 88, 99);
        
        numbers.stream()
                .skip(5)
                .forEach(System.out::println);
    }

kunals201

public class Sample {
    
    public static void main(String[] args) {
        
        List<Integer> numbers = Arrays.asList(11, 22, 33, 44, 55, 66, 77, 88, 99);
        
        numbers.stream()
                .takeWhile(e -> e < 66)
                .forEach(System.out::println);
    }

kunals201

public class Limit {
    
    public static void main(String[] args) {
        
     List<Integer> numbers = Arrays.asList(11,22,33,44,55,66,77,88,99);
        
        numbers.stream()
                .limit(4)
                .forEach(System.out::println);
    }