AP Computer Science A Unit 2 Progress Check: MCQ Part A 100% Pass

AP Computer Science A Unit 2 Progress
Check: MCQ Part A 100% Pass
What will be the output of the following code?




```java

int x = 5;

int y = 10;

System.out.println(x + y);

```




A) 15

B) 510

C) 5

D) 10




✔✔ Answer: A) 15




Given the following code snippet, what is the value of `result` after execution?

1

,```java

int a = 8;

int b = 3;

int result = a % b;

```




A) 2

B) 1

C) 3

D) 5




✔✔ Answer: A) 2




Which of the following statements correctly initializes an `ArrayList` of `String` objects in Java?




A) `ArrayList<String> list = new ArrayList();`

B) `ArrayList list = new ArrayList<String>();`


2

, C) `ArrayList<String> list = new ArrayList<String>();`

D) `ArrayList<String> list = new List<String>();`




✔✔ Answer: C) ArrayList<String> list = new ArrayList<String>();




What will be the output of the following code if `str` is initialized to `"hello"`?




```java

String str = "hello";

System.out.println(str.toUpperCase());

```




A) `hello`

B) `HELLO`

C) `Hello`

D) `HELLOO`




✔✔ Answer: B) HELLO


3