Project Coin- Java 7 language enhancements

gistfile1.java

import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Created by IntelliJ IDEA.
 * User: mohamed
 * Date: 1/5/12
 * Time: 8:49 PM
 * To change this template use File | Settings | File Templates.
 */
public class Java7FeatureDemo {
    public static void main(String[] args){
        /*
        Diamond Operator
         */
        //Pre Java 7 style of declaration
        Map<String, List<Integer>> myMap = new HashMap<String, List<Integer>>();

        // Warning issued by compiler
        Map<String, List<Integer>> myMap2 = new HashMap();

        // Java 7 language enhancement - Generic type inference.
        Map<String, List<Integer>> myMap3 = new HashMap<>();

        /*
        Strings in Switch statements.
         */
        String choice = "A";

        switch (choice){
            case "A":
                System.out.println("A chosen");
                break;
            case "B":
                System.out.println("B chosen");
                break;
            case "C":
                System.out.println("C chosen");
                break;
        }

        /*
        Multi catch blocks
         */

        try {
            exceptionThrowingMethod1();

        } catch (IOException | NoSuchFieldException e){
            e.printStackTrace();
        }

        /*
        Binary Integral literals
         */
        int binary1 = 0b011;
        int binary2 = 0B111;
        int hex1 = 0x31;
        System.out.println(binary1);
        System.out.println(hex1);
        System.out.println(binary2);

        /*
        Underscores in Integer literals
         */
        // Pre Java 7
        int hugeNumber = 1000000000;
        // In Java 7
        int hugeNumber2 = 1_000_000_000;
        System.out.println(hugeNumber == hugeNumber2);
    }

    static void exceptionThrowingMethod1() throws IOException, NoSuchFieldException{}


}