[Java] - Exception & Loging

    try {
                //body
            } catch (Exception ex) {
                // exception code
            } finally {
                // final code
 try-with-resource statement

try (Resource resource 1;
      Resource resourcce 2) {
}

In Java SE 6 with Resource Management.
        // Java SE 6 or later
        BufferedReader bufferReader1 = null;
        try {
            bufferReader1 = new BufferedReader(new FileReader("Test.txt"));
            System.out.println(bufferReader1.readLine());
        } catch (Exception e) {
            // TODO: handle exception
        } finally {
            try {
                bufferReader1.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }

 In Java SE 7 or later with Resource Management.
         // Java SE 7 & 8
        try (BufferedReader bufferReader2 = new BufferedReader(new FileReader("Test.txt"))) {
            System.out.println(bufferReader2.readLine());
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

II. Create a new Resource
 When you create a resource class that use to try-with-resource, those class must be implement close method  from java.lang.AutoCloseable .

Example:
ReadFile.java
package javaone.core.learning;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class ReadFile implements AutoCloseable {
    private BufferedReader buff;
    private FileReader fileReader;

    public void printContentOfFile(String path) {
        try {
            fileReader = new FileReader(path);
            buff = new BufferedReader(fileReader);
            String line = buff.readLine();
            System.out.println(line);
            while (line != null) {
                System.out.println(line);
                line = buff.readLine(); 
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /** {@inheritDoc} */
    @Override
    public void close() throws Exception {
        buff.close();
        System.out.println("Close Read File");
    }
}

MainTest.java
public static void main(String[] args) {
         // test new Resource
        System.out.println("test new Resource");
        try (ReadFile readFile = new ReadFile();) {
            readFile.printContentOfFile("Test.txt");
        } catch (Exception e) {
            System.out.println();
        }
    }

Result:
test new Resource
Try With Resource line 1
Try With Resource line 1
Try With Resource line 2
Try With Resource line 3
Try With Resource line 4
Try With Resource line 5
Close Read File 

When the point jump out try-with-resource statement, the resource auto close ReadFile resource. We don't need to manually close resource.