Java 7: Project Coin Examples

DiamondOperator.java

    public void createGenerics() {
        List<String> list = new ArrayList<String>();
        Map<String, List<String>> keyValues = new HashMap<String, List<String>>();
    }

    public void createWithDiamondOperator() {
        List<String> list = new ArrayList<>();
        Map<String, List<String>> keyValues = new HashMap<>();
    }

MultiCatch.java

    public void multiCatch(Class<MultiCatch> myClass) {
        try {
            Method method = myClass.getMethod("sayHello");
        } catch (NoSuchMethodException | SecurityException e) {
            // common exception handling logic
        }
    }

NumericLiterals.java

    public void numericLiterals() {
        int mask1 = 0b1000100010001000;
        int mask2 = 0b1000_1000_1000_1000;

        int color = 0xff_f0_fe_ff;

        int price = 1_000_000;

        double PI = 3.141_592_653_589_793d;
    }

StringBasedSwitch.java

    public void executeCommand(String command) {
        switch (command) {
            case "start":
                startService();
                break;

            case "stop":
                stopService();
                break;

            case "status":
                showStatus();
                break;

            default:
                unknownCommand();
        }
    }