使用Try-with-Resources时的编译错误

Question

I am a newbie on Java and writing a code of Try-with-Resources. I am using JRE_1.7.0_51. The code is...

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;

public class app2 {
    public static void main(String[] args) {
        File file=new File("test.txt");
        FileReader fr=new FileReader(file);

        try(BufferedReader br=new BufferedReader(fr)){

        }

     }
}

However post execution I get the following eror--

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

    at App.main(App.java:13)

Not sure what I am doing wrong. Need help. Thanks in advance.

Answer 1

What compiler are you using? The only thing missing is a check for IOException . The following code compiles without problems

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;

public class app2 {
    public static void main(String[] args) throws Exception {
        File file=new File("test.txt");
        FileReader fr=new FileReader(file);

        try(BufferedReader br=new BufferedReader(fr)){

        }

     }
}