public static void main(String args[]) {
Java8Tester tester = new Java8Tester();
// 类型声明
MathOperation addition = (int a, int b) -> a + b;
// 不用类型声明
MathOperation subtraction = (a, b) -> a - b;
// 大括号中的返回语句
MathOperation multiplication =
(int a, int b) -> {
return a * b;
};
// 没有大括号及返回语句
MathOperation division = (int a, int b) -> a / b;
System.out.println("10 + 5 = " + tester.operate(10, 5, addition));
System.out.println("10 - 5 = " + tester.operate(10, 5, subtraction));
System.out.println("10 x 5 = " + tester.operate(10, 5, multiplication));
System.out.println("10 / 5 = " + tester.operate(10, 5, division));
// 不用括号
GreetingService greetService1 = message -> System.out.println("Hello " + message);
// 用括号
GreetingService greetService2 = (message) -> System.out.println("Hello " + message);
greetService1.sayMessage("Runoob");
greetService2.sayMessage("Google");
}
@Test
public void testWelcome() {
String welcome = greeting.welcome();
assertNotNull(welcome);
LOG.debug(welcome);
}
@Before
public void setUp() {
LOG.info("setUp");
greeting.addGuest(new GuestImpl("Rainer", "Zufall"));
}
@GetMapping("/greetings/{caller}")
public String get(@PathVariable String caller) {
return greetingService.sayHello(caller);
}
public static void main(String args[]) {
GreetingService greetService1 = message -> System.out.println(salutation + message);
greetService1.sayMessage("Mahesh");
}
public String getGreeting() {
return greetService.greet(name);
}
@Test
public void testSimpleCall() throws Exception {
assertEquals("Hello John Smith", greetingService.getGreeting("Smith", "John"));
mockMvc.perform(MockMvcRequestBuilders.request(HttpMethod.GET, "/fee")).andReturn();
}
