SCJP刷题学习笔记（Part seven）

QUESTION 61

Given:

	public interface Moveable<Integer> {
		public default void walk (Integer distance) {System.out.println
		("Walking");}
		public void run(Integer distance);
		}

 

Which statement is true?

A. Moveable can be used as below:

Moveable<Integer> animal = n - > System.out.println(“Running” + n);

animal.run(100);

animal.walk(20);

B. Moveable can be used as below:

Moveable<Integer> animal = n - > n + 10;

animal.run(100);

animal.walk(20);

C. Moveable can be used as below:

Moveable animal = (Integer n) - > System.out.println(n);

animal.run(100);

Moveable.walk(20);

D. Movable cannot be used in a lambda expression.

Correct Answer: A

Section: (none)

Explanation

 

 

Explanation/Reference:

 

 

 

QUESTION 62

Which two code blocks correctly initialize a Locale variable? (Choose two.)

A. Locale loc1 = "UK";

B. Locale loc2 = Locale.getInstance("ru");

C. Locale loc3 = Locale.getLocaleFactory("RU");

D. Locale loc4 = Locale.UK;

E. Locale loc5 = new Locale ("ru", "RU");

Correct Answer: DE

Section: (none)

Explanation

Explanation/Reference:

 

 

 

QUESTION 63

Given:

class FuelNotAvailException extends Exception { }
class Vehicle {
void ride() throws FuelNotAvailException { //line n