[Apex Basics & Data] -Get Started with Apex (Apex 시작하기)

reate an Apex class with a method that returns a list of strings

Create an Apex class with a method that returns a list of formatted strings. The length of the list is determined by an integer parameter. You can also use an array if you prefer, but these instructions assume you’re using a list.

• 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 a list of strings
  • The method must accept an incoming Integer as a parameter, which will be used to determine the number of returned strings
  • The method must return a list of strings. Each element in the list must have the format Test n, where n is the index of the current string in the list. For example, if the input is 3, then the output should be ['Test 0', 'Test 1', 'Test 2']. Remember that in Apex, the index position of the first element in a list is always 0.

 

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File ->new -> Apex Class

public class StringArrayTest {
    public static List<String> generateStringArray(Integer n){
        List<String> test = new List<String>();
        for(Integer i=0; i<n; i++){
            test.add('Test '+i);
            system.debug(test[i]);
        }
        return test;
    }
}

 

디버그하기

Debug -> Exter Apex Code

StringArrayTest.generateStringArray(3);

 

Debug only 만 누른다면

 

 

오류

Method does not exist or incorrect signature: void generateStringArray(Integer) from the type StringArrayTest

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