彦舜原创，优快云首发：Input-OutputStream

最新推荐文章于 2024-05-08 22:45:52 发布

原创

最新推荐文章于 2024-05-08 22:45:52 发布 · 置顶 · 200 阅读

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#java #后端 #io

本文深入探讨了Java后端开发中的输入输出流（IO流）技术，包括基本概念、分类、常用API及其应用场景，旨在帮助读者理解并熟练运用IO流进行数据传输。

/**
 * 
 */
package io.java;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

/**
 * @author 彦舜
 *
 */
public class IOInputOutputStream {

	/**
	 * 
	 */
	public IOInputOutputStream() {
		// TODO Auto-generated constructor stub
	}

	/**
	 * @param args
	 * @throws IOException
	 * @throws Exception
	 */
	public static void main(String[] args) throws Exception {
		// TODO Auto-generated method stub

		/** Test InputStream and OutputStream for IO Byte Stream. */
		testIOputStream();
	}
	
	/**Test InputStream and OutputStream for IO Byte Stream 
	 * @throws IOException */
	@SuppressWarnings("null")
	public static void testIOputStream() throws IOException {
		/**1.InputStream
		   
		   Create a instanced InputStream object.
		  
		   InputStream cannot be resolved to a type
		   FileInputStream cannot be resolved to a type
		   --Import 'ClassName' (java.io)
		   --(Add type parameter 'ClassName' to 'method()')
		   --Fix project setup......
		   
		   Unhandled exception type FileNotFoundException
		   --Add throws declaration
		   --Surround with try/catch
		   
		   File cannot be resolved to a type
		   --Import 'File' (java.io)
		   
		   FileNotFoundException cannot be resolved to a type
		   --Import 'FileNotFoundException' (java.io)
		   
		   IOException cannot be resolved to a type
		   --Import 'IOExeption' (java.io)
		   
		   The value of the local variable field is not used
		   --Remove 'field' and all assignments
		   --Remove 'field', keep assignments with side effects
		   ----Fix 2 problems of same category in file
		   --Add @SuppressWarnings 'unused' to 'field'/'method()'
		   --Configure problem severity配置问题的严重程度/配置问题的严重性
		   
		   The import java.io.FileNotFoundException is never used
		   --Remove unused import
		   --Organize imports
		   --Add @SuppressWarnings 'unused' to 'ClassName'
		   --Configure problem severity
		   
		   The value of the local variable field is not used
		   --Remove 'field' and all assignments
		   --Remove 'field', keep assignment