Apex Session 2

What will be the output of the following code?

Integer number = 0;

if (number > 0){ system.debug(The number is positive.);}

else if (number < 0) { system.debug('The number is negative.');}

else { system.debug('The number is 0.');}

• The number is positive.

• The number is negative.

• The number is 0.

• None of them.

What will be the output of the following code?

Integer num = 5;

if(num = 5){

system.debug(num);

}

• 5

• 6

• error

• 0

Which method is used to know the size of list?

• size()

• isEmpty()

• isLength

• isSize()

Remove one element from the list where element value is 2

List<Integer> numList = new List<Integer>{1 , 2};

• numList.remove(0);

• numList.remove(1);

• numList.remove(2);

• numList.remove(3);

What will be the output of the following code?

List<String> days = new List<string>{'a','b','c','d'};

for(Integer j = 1; j < days.size(); j++ ){

system.debug(days.get(j));

}

• a to d

• a to c

• b to d

• c to d

How many times this loop will run:

Integer num = 10;

while(num < 20 ){

system.debug(num);

}

• 1 time

• 10 times

• 20 times

• infinite times (Apex CPU time limit exceeded)

What will be the output of the following code?

boolean flag = false;

if(flag){ system.debug('The output is false');

else if(!flag){ system.debug('The output is true');}

else{system.debug('I do not know the output');}

• The output is false

• The output is true

• I do not know the output

What is List ?

• A list is an ordered collection of elements that are distinguished by their indices.

• A list is not an ordered collection of elements but these elements are distinguished by their indices.

Which method is used to create a copy of the list?

• isClone()

• clone()

• copy()

• createCopy()

How to store multiple Account records into a variable ?

• By using Collection Variable

  List<Account> accList = new List<Account>();

• By using single instance of account

  Account accRecord = new Account;