Why does hasNext() never ends in Scanner class ? I want to input a sequence of strings using Scanner class

Question

Basic code for input a series of strings. I trying to use it but this never ends and my solution is not getting printed. What possibly am I doing wrong ?

while (S.hasNext()) {
    String s = S.next();
    int max = 0;
    for (int i = 0; i < s.length(); i++) {
        if (Character.isUpperCase(s.charAt(i))) {
            max++;
        }
    }
    if (max > curr) {
        curr = max;
    }
}
System.out.println(curr);

Can you share how you create S ? Did you hook the Scanner up to System.in? — Spidy, Aug 06 '21 at 04:27

score 1 · Accepted Answer · answered Aug 06 '21 at 04:28

1

If you are using System.in as your input system, hasNext will always be true because the input stream is never closed. It just waits for more input. Similar question: Scanner.hasNextLine - always true

answered Aug 06 '21 at 04:28

Spidy

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Why does hasNext() never ends in Scanner class ? I want to input a sequence of strings using Scanner class

1 Answers1