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try (ResourceType resource = new ResourceType()) {
    // 使用(yong)資源的代(dai)碼
} catch (ExceptionType e) {
    // 異常處理代碼
} finally {
    // 可選的finally塊
}

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
 
public class TryCatchDemo {
 
    public static void main(String[] args) {
        String path = "path.txt";
        BufferedReader br = null;
 
        try {
            br = new BufferedReader(new FileReader(path));
            String line = br.readLine();
            while (line != null) {
                System.out.println(line);
                line = br.readLine();
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (br != null) {
                    br.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
 
public class TryWithResourcesDemo {
 
    public static void main(String[] args) {
        String path = "path.txt";
 
        try (BufferedReader br = new BufferedReader(new FileReader(path))) {
            String line = br.readLine();
            while (line != null) {
                System.out.println(line);
                line = br.readLine();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}