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| 1 | public class Diamond {
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| 2 | ||
| 3 | static final String BASE = "ZYXWVUTSRQPONMLKJIHGFEDCBABCDEFGHIJKLMNOPQRSTUVWXYZ"; | |
| 4 | ||
| 5 | - | public String generateDiamond(char current, char stop) {
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| 5 | + | public String generateDiamond(char c, char stop) {
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| 6 | String unmaskedLine = BASE.substring(BASE.indexOf(stop), BASE.lastIndexOf(stop) + 1); | |
| 7 | - | String maskedLine = unmaskedLine.replaceAll("[^" + current + "]", " ") + "\n";
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| 7 | + | String maskedLine = unmaskedLine.replaceAll("[^" + c + "]", " ") + "\n";
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| 8 | ||
| 9 | - | return (current == stop) ? maskedLine : maskedLine + generateDiamond(++current, stop) + maskedLine; |
| 9 | + | return (c == stop) ? maskedLine : maskedLine + generateDiamond(++c, stop) + maskedLine; |
| 10 | } | |
| 11 | ||
| 12 | public static void main(String[] args) {
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| 13 | Diamond diamond = new Diamond(); | |
| 14 | System.out.println(diamond.generateDiamond('A', 'R'));
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| 15 | } | |
| 16 | } |
