### 第1關：詞云的繪制
```
FrequencyAnalyzer fr = new FrequencyAnalyzer();
fr.setWordFrequenciesToReturn(200);
List<WordFrequency> wordFrequencies = fr.load("wordcloud.txt");
Dimension dimension = new Dimension(500, 312);
WordCloud wordCloud = new WordCloud(dimension, CollisionMode.PIXEL_PERFECT);
wordCloud.build(wordFrequencies);
wordCloud.writeToFile("imgs/wordcloud_img.png");
return wordCloud;
```
### 第2關：詞云的渲染
```
java.awt.Font font = new java.awt.Font("宋體",3, 24);
wordCloud.setKumoFont(new KumoFont(font));
wordCloud.setPadding(2);
wordCloud.setBackgroundColor(Color.WHITE);
wordCloud.setBackground(new PixelBoundryBackground("myImgs/whale_small.png"));
wordCloud.setColorPalette(new ColorPalette(Color.RED, Color.BLUE, Color.GREEN));
wordCloud.setWordStartStrategy(new CenterWordStart());
wordCloud.setAngleGenerator(new AngleGenerator(0));
```
### 第3關：獲取酒店評論數據生成詞云
```
TableName tableName = TableName.valueOf(Bytes.toBytes("comment_word_count"));
Table table = conn.getTable(tableName);
ResultScanner scanner = table.getScanner(new Scan());
List<WordFrequency> words = new ArrayList<>();
for (Result result : scanner) {
String word = new String(result.getRow(), "utf-8");
int count = Bytes.toInt(result.getValue("word_info".getBytes(),"count".getBytes()));
WordFrequency wordFrequency = new WordFrequency(word,count);
if(count>10){
words.add(wordFrequency);
}
}
Dimension dimension = new Dimension(500,312);
WordCloud wordCloud = new WordCloud(dimension, CollisionMode.PIXEL_PERFECT);
wordCloud.setPadding(2);
Font font = new Font("宋體", 2, 24);
wordCloud.setKumoFont(new KumoFont(font));
wordCloud.setColorPalette(new LinearGradientColorPalette(Color.RED, Color.BLUE, Color.GREEN, 30, 30));
wordCloud.setBackgroundColor(Color.WHITE);
wordCloud.setBackground(new PixelBoundryBackground("myImgs/whale_small.png"));
wordCloud.setWordStartStrategy(new CenterWordStart());
wordCloud.setAngleGenerator(new AngleGenerator(0));
wordCloud.build(words);
```
