Quiz Day 1 - Day 8

public class Day1Assignment {

public void lesson1() { int[] numbers = new int[3];

numbers[0] = 10;

numbers[1] = 20;

numbers[2] = 30;

System.out.println(numbers[1]); }

}

What is the output based on the above code : __

Fill in the blank :

public class Day2Assignment {

______ ____ lesson1() {

int x = 10;

if (x > 5) {

System.out.println("x is greater than 5");

}

else

{ System.out.println("x is not greater than 5"); }

}}

int[] numbers;

System.out.println(numbers[0]);

Based on the code above, what type of exception it is?

• Array Index Out Of Bounds Exception

• Null Pointer Exception

• Negative Array Size Exception

The operation of code below is to copy an array ,complete the code below :

int[] numbers = {1, 2, 3, 4, 5};

int[] copy = _______.______(numbers, numbers.length);

Whats is the output for the code below ?

int[] numbers1 = {1, 2, 3, 4, 5};

int[] numbers2 = {1, 2, 3, 4, 5};

System.out.println(Arrays.equals(numbers1, numbers2));

• true

• none of these

• [ (1,1),(2,2),(3,3),(4,4),(5,5)]

• (1,2,3,4,5) = (1,2,3,4,5)

What is the output based on the code given.

• Meow

• Bark

• Error or cannot be compile

• Animal

Answer explanation

What is the output of the code?

Answer explanation

What will be the output of this code?

• Compiler error at line 1

• Compiler error at line 4

• None of these

• square > circle

Path p = Path.of(“test.txt”);

Files.writeString(p, “Welcome”);

Files.writeString(p, “Thankyou”);

System.out.println(Files.readString(p));

Suppose the file “test.txt” didn’t exist. What is the given code fragment’s output?

• Thankyou

• Welcome

• Thankyou Welcome

• No answer

Which of the following descriptions about streams is false?

• A stream is not a data structure that stores elements

• An operation on a stream produces a result, but does not modify its source

• Many stream operations can be implemented lazily

• An element in a stream can be visited more than once to optimize operations