How do you create an apex class with a method that returns an array or list of strings?

How do you create an apex class with a method that returns an array or list of strings?

Create an Apex class that returns an array (or list) of formatted strings (‘Test 0’, ‘Test 1’.). The length of the array is determined by an integer parameter. The Apex class must be called ‘StringArrayTest’ and be in the public scope. The Apex class must have a public static method called ‘generateStringArray’.

How do I create an array in Apex?

Arrays in Apex

1. Arrays:
2. Syntax: datatype[] arrayName; // the square brackets [] is the notation used to declare an array.
3. Example: Integer[] ages; // 30, 40, 50..
4. Note: Arrays of arrays are not allowed.

How do I create an apex class in Salesforce?

Module 4: Creating an Apex Class

1. In Salesforce, click your name in the upper right corner of the screen. In the dropdown menu, click Developer Console.
2. In the Developer Console, click File > New > Apex Class.
3. Implement the class as follows:
4. Click File > Save to save the file.

Which method return type returns a value trailhead?

Return Types To return a value, replace void with a different return type. For example, here, the wilt method expects a return (response) value that’s an integer.

How do you write a for loop in Apex class?

Apex supports three variations of the for loop:

1. The traditional for loop: for (init_stmt; exit_condition; increment_stmt) { code_block }
2. The list or set iteration for loop: for (variable : list_or_set) { code_block }
3. The SOQL for loop: for (variable : [soql_query]) { code_block }

What is the difference between array and List in Salesforce?

Even though the size of the previous String array is defined as one element (the number between the brackets in new String), lists are elastic and can grow as needed provided that you use the List add method to add new elements. For example, you can add two or more elements to the colors list.

How do I create an array of strings in Apex?

Each element in the array is located by index and the index value starts with zero.

1. Array Syntax. [] arrayOfProducts = new List();
2. Difference between Array and Collections. Arrays.
3. Apex Class code.
4. Visualforce Page.
5. Output.

Is Apex similar to Java?

Syntactically, yes, Apex is similar to Java. It is compiled like Java, it has a Java Virtual Machine in the background – somewhere – but it’s not a full-fledged VM, only the part of it.

How to create an apex class that returns an array?

The ‘generateStringArray’ method must return an array (or list) of strings. Each string must have a value in the format ‘Test n’ where n is the index of the current string in the array. The number of returned strings is specified by the integer parameter to the ‘generateStringArray’ method.

What do you need to know about apex class in Java?

The Apex class must be called ‘StringArrayTest’ and be in the public scope. The Apex class must have a public static method called ‘generateStringArray’. The ‘generateStringArray’ method must return an array (or list) of strings.

How to perform generatestringarray in the apex class?

The Apex class must be called ‘StringArrayTest’ and be in the public scope. The Apex class must have a public static method called ‘generateStringArray’. The ‘generateStringArray’ method must return an array (or list) of strings. Each string must have a value in the format ‘Test n’ where n is the index of the current string in the array.

Why does apex not return the proper number of strings?

Either the method does not exist, is not static, or does not return the proper number of strings.