java - Try-With-Resources示例，编译失败。代码有什么问题

Question

import java.io.*;

public class TryWithResources {
    public static void main(String[] args) {
        try (BufferedReader br = new BufferedReader(new FileReader("C:\\testing.txt"))) 
        {
            String line;
            while ((line = br.readLine()) != null) {
                System.out.println(line);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

控制台上的错误消息。我正在使用SpringSource Tool Suite(STS)IDE版本2.7.2。

Exception in thread "main" java.lang.Error: Unresolved compilation problems: 
    Syntax error on token "(", { expected
    Syntax error on token ")", ; expected
    Syntax error, insert "}" to complete Block
    at TryWithResources.main(TryWithResources.java:9)

第9行是

try (BufferedReader br = new BufferedReader(new FileReader("C:\\testing.txt")))

Answer 1

代码没有错。确保使用Java 7编译器进行编译