CCNA, CCNP, MCSA, CCNA Final Exam, All Answer Test Module With 100/100

I need to write List<MyClass> myList into CSV file. In particular I need to write values . MyClass has the following implementation: public class MyClass { private Object[] values; //... @Override public String toString() { String line = ""; for (int i=0; i<this.getSize(); i++) { //if (this.values[i] != null) { line = line + this.values[i] + " "; //} } return line; } } The code is the following: private void saveSolutionToCSV(List<MyClass> solution) { int columnSize = solution.get(0).getSize(); try { FileWriter writer = new FileWriter("test.csv"); Iterator result = solution.iterator(); while(result.hasNext()) { for(int i = 0; i < columnSize; i++) { CharSequence element = (CharSequence)result.next(); writer.append(element); if(i < columnSize - 1) writer.a