Splitting string by spaces (java)

Question

i'm trying to read in student information in one line, the line contains ID, name, age and gpa. I want to split the line by spaces and store each token in my string array Splited[]. Why does this code give me ArrayOutOfBounds error on the line String name = splited[1]; ? Sample input: 3844 Jim 30 3.4 thank you

       String [] splited = new String [4];

       System.out.println("Enter student Id, name, age and gpa: ");
       String info = keyboard.next();
       //separate student info line by spaces
          splited = info.split("\\s");

       int id = Integer.parseInt(splited[0]);
       String name = splited[1];
       int age = Integer.parseInt(splited[2]);
       double gpa = Double.parseDouble(splited[3]);

Answer 1

String info = keyboard.next(); is returning the first String separated by a white space (so that would be id ) in your case.

Try using String info = keyboard.nextLine(); which will return the entire content up to the new line character. Then you can use String#split (or another Scanner ) to parse the text

Answer 2

why don't you simply use " " instead of "\\s" to split the input. and you should check the validity of the input.

actual problem is: keyboard.next() only reads the next word (space is a defaultdelimiter of the scanner). use keyboard.nextLine() instead.