How to add a string into a StringArray [duplicate]

Question

I've already created the whole code, but i don't know how to add a String to a String array.

here's my code:

**CandidateDAO candidatedao = new CandidateDAO();
        String fill = null;
        CandidateReport[] candidatesReports = candidatedao.getAllCandidates();
        String [] newArray = ;
        
        for(int i = 0; i < candidatesReports.length; i++) {
            fill = candidatesReports[i].getCandidateId() + ":" + this.calculateGrade(candidatesReports[i]);
            
        }
            
        return newArray;*****