Java之Java7新特性之try资源句式

 1 static String readFirstLineFromFile(String path) throws IOException {
 2     BufferedReader br = null;
 3     try {
 4         br = new BufferedReader(new FileReader(path));
 5     } catch (Exception ex) {
 6         //do exception action
 7     } finally {
 8         if (br != null) {
 9             try {
10                 br.close();
11             } catch (Exception ex) {
12                 //do exception action
13             }
14         }
15     }
16 }

1 static String readFirstLineFromFile(String path) throws IOException {  
2     try(  
3         BufferedReader br = new BufferedReader(new FileReader(path))  
4     ){  
5         return br.readLine();  
6     }  catch (Exception ex) {
7         //do exception action
8     }
9 }