Method: SimpleScannerInput(String)

1: package de.fhdw.wtf.common.stream;
2:
3: import java.util.ArrayList;
4: import java.util.List;
5:
6: /**
7: * ScannerInput that relies on a String as sorted source of characters.
8: *
9: */
10: public class SimpleScannerInput implements ScannerInputStream {
11:         
12:         /**
13:          * Splitted list of characters showing the stream.
14:          */
15:         private final List<Character> data = new ArrayList<>();
16:         
17:         /**
18:          * Constructor using a single String as input source.
19:          *
20:          * @param input
21:          * characters in this stream
22:          */
23:         public SimpleScannerInput(final String input) {
24:•                for (int i = 0; i < input.length(); i++) {
25:                         this.data.add(input.charAt(i));
26:                 }
27:         }
28:         
29:         @Override
30:         public char next() {
31:                 final char next = this.data.get(0);
32:                 this.data.remove(0);
33:                 return next;
34:         }
35:         
36:         @Override
37:         public boolean hasNext() {
38:                 return !this.data.isEmpty();
39:         }
40:         
41: }