JDK1.7新特性-try-with-resources语句
2016-11-30 14:56
323 查看
先了解jdk1.6及之前版本IO流异常处理标准代码
jdk1.7 IO流异常处理标准代码
jdk1.7 IO流异常处理标准代码
public void demo() throws FileNotFoundException, IOException { try( // 只有实现了AutoCloseable接口的IO类,才能将获得资源的代码写在小括号中。 // FileInputStream、FileOutputStream都已经实现了这个接口。 // 写在小括号中的IO类,jvm会自动帮你关闭流。 FileInputStream fis = new FileInputStream("a.txt"); FileOutputStream fos = new FileOutputStream("b.txt"); ){ byte[] arr = new byte[1024*8]; int len; while((len = fis.read(arr)) != -1) { fos.write(arr,0,len); } } }
相关文章推荐
- Java SE7新特性之try-with-resources语句
- Java SE7新特性之try-with-resources语句
- Java SE7新特性之try-with-resources语句
- Java 7 新特性try-with-resources语句
- java7新特性:Try - with - Resources语句
- Java7 新特性:try() 语句 即 try-with-resources
- Java SE7新特性之try-with-resources语句
- JDK1.7新特性之try-with-resources和catch多种异常
- Java新特性之try-with-resources语句
- Java SE7新特性之try-with-resources语句
- Java SE7新特性之try-with-resources语句
- Java SE7新特性之try-with-resources语句
- Java SE7新特性之try-with-resources语句
- Java SE7新特性之try-with-resources语句
- jdk1.7新特性之 try-with-resources
- Java SE7新特性之try-with-resources语句
- try-with-resources语句
- java7特性之 try-with-resources
- Java 1.7新特性之(try-with-resources)
- jdk1.7中try-with-resources语法糖详解