I want check whether a String value val
is contained within a List of Strings lets call it stringList.
I am doing this
if(stringList.contains(val)){
System.out.println("The value is in there");
}
else{
System.out.println("There's no such value here");
}
But it always seems to be that the value is not included. Is this because two String values that have the same characters are not actually equal? For a "home-made" class I could implement hashCode() and equals() and fix this, what can I do for String data?
EDIT:
The way I am getting val is outlined here:
List<String> stringList = new ArrayList<String>();
stringList.add("PDT");
stringList.add("LDT");
stringList.add("ELNE");
String myFile = "/folder/myFile";
InputStream input = new FileInputStream(myFile);
CSVReader reader = new CSVReader(new InputStreamReader(input), ',','"', 1);
String[] nextLine;
try {
while ((nextLine = reader.readNext()) != null) {
if (nextLine != null) {
if (nextLine[6] != null){
String val = nextLine[6];
if(stringList.contains(val)){
System.out.println("Success");
}
}
}
}