Lambda

-------------Ex:1----------------

package com.gs.iilp.corejava.java8;

interface Flyable {
	public void fly();
}

public class Lambda1 {

	public static void main(String[] args) {
		Flyable flyable = new Flyable() {

			@Override
			public void fly() {
				System.out.println("Fly without lambda");
			}
		};

		flyable.fly();
	}

}

-------------Ex:2----------------

package com.gs.iilp.corejava.java8;

@FunctionalInterface
interface Flyable {
	public void fly();
}

public class Lambda1 {

	public static void main(String[] args) {
		Flyable flyable = () -> {
			System.out.println("Fly with lambda");
		};

		flyable.fly();

	}
}

-------------Ex:3--------------------

package com.gs.iilp.corejava.java8;

@FunctionalInterface
interface Flyable {
	public void fly(String name);
}

public class Lambda1 {

	public static void main(String[] args) {
		Flyable flyable = (name) -> {
			System.out.println("Fly with lambda " + name);
		};

		flyable.fly("Bird");

	}
}

-------------Ex:4--------------------

package com.gs.iilp.corejava.java8;

@FunctionalInterface
interface Flyable {
	public void fly(String name);
}

public class Lambda1 {

	public static void main(String[] args) {
		Flyable flyable = name -> {
			System.out.println("Fly with lambda " + name);
		};

		flyable.fly("Bird");

	}
}


-------------Ex:5--------------------

package com.gs.iilp.corejava.java8;

@FunctionalInterface
interface Flyable {
	public void fly(String name, int wings);
}

public class Lambda1 {

	public static void main(String[] args) {
		Flyable flyable = (n, w) -> {
			System.out.println("Fly with lambda " + n + " wings are " + w);
		};

		flyable.fly("Bird", 2);

	}
}


-------------Ex:6--------------------

package com.gs.iilp.corejava.java8;

interface Multiplyable {
	public int multiply(int a, int b);
}

public class Lambda2 {
	public static void main(String[] args) {
		Multiplyable multiplyable = (a, b) -> (a * b);
		System.out.println(multiplyable.multiply(4, 7));
	}

}

-------------Ex:7--------------------

package com.gs.iilp.corejava.java8;

interface Multiplyable {
	public int multiply(int a, int b);
}

public class Lambda2 {
	public static void main(String[] args) {
		Multiplyable multiplyable = (a, b) -> {
			return a * b;
		};
		System.out.println(multiplyable.multiply(4, 7));
	}

}

-------------Ex:8--------------------

package com.gs.iilp.corejava.java8;

interface Multiplyable {
	public int multiply(int a, int b);
}

public class Lambda2 {
	public static void main(String[] args) {
		Multiplyable multiplyable = (int a, int b) -> {
			return a * b;
		};
		System.out.println(multiplyable.multiply(4, 7));
	}

}

-------------Ex:9--------------------

package com.gs.iilp.corejava.java8;

import java.util.ArrayList;
import java.util.List;

public class Lambda3 {
	public static void main(String[] args) {
		List<String> names = new ArrayList<String>();
		names.add("Mohit");
		names.add("Shohom");
		names.add("Jatin");
		names.add("Keshav");

		names.forEach((s) -> {
			if (s.contains("o")) {
				System.out.println(s);
			}
		});
	}
}

-------------Ex:10--------------------

package com.gs.iilp.corejava.java8;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

public class Lambda4 {
	public static void main(String[] args) {

		List<String> names = new ArrayList<String>();

		names.add("Mohit");
		names.add("Shohom");
		names.add("Jatin");
		names.add("Keshav");

		System.out.println("before sorting");
		System.out.println(names);
		System.out.println("after sorting using comparator java 7 annonyous class");

		Collections.sort(names, new Comparator<String>() {

			@Override
			public int compare(String o1, String o2) {

				return o1.compareTo(o2);
			}
		});

		System.out.println(names);

	}

}


-------------Ex:11--------------------


package com.gs.iilp.corejava.java8;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class Lambda4 {
	public static void main(String[] args) {

		List<String> names = new ArrayList<String>();

		names.add("Mohit");
		names.add("Shohom");
		names.add("Jatin");
		names.add("Keshav");

		System.out.println("before sorting");
		System.out.println(names);
		System.out.println("after sorting using comparator java 7 annonyous class");

		Collections.sort(names, (o1, o2) -> {
			return o1.compareTo(o2);
		});

		System.out.println(names);

	}

}



-------------Ex:12--------------------

package com.gs.iilp.corejava.java8;

public class Lambda5 {

	public static void main(String[] args) {

		new Thread(() -> {
			System.out.println("Thread 1");
		}).start();

		new Thread(() -> {
			System.out.println("Thread 2");
		}).start();

	}
}