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  • java 流 读

      

    package 流;
    
    import java.io.BufferedReader;
    import java.io.FileInputStream;
    import java.io.FileNotFoundException;
    import java.io.FileReader;
    import java.io.IOException;
    import java.io.InputStream;
    
    public class 读 {
        
        public static void main(String[] args) {
    
            BufferedReaderDemo();
        }
        
        
        public static void InputStreamDemo(){
            try {
                InputStream inputStream=new FileInputStream("d://test.txt");
                int ch=0;
                try {
                    while((ch=inputStream.read())!=-1)
                    {
                        System.out.print((char)ch);
                    }
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        
    
        public static void FileReaderDemo(){
            
            FileReader fileReader;
            try {
                fileReader = new FileReader("d://test.txt");
                int ch=0;
                try {
                    while((ch=fileReader.read())!=-1)
                    {
                        System.out.print((char)ch);
                    }
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        
        public static void BufferedReaderDemo(){
            
            try {
                BufferedReader bufferedReader=new BufferedReader(new FileReader("d://test.txt"));
                String data;
                try {
                    data = bufferedReader.readLine();
                    while(data!=null)
                    {
                        System.out.println(data);
                        data=bufferedReader.readLine();
                    }
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
    
            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    
    
    
    }
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  • 原文地址:https://www.cnblogs.com/huangcongcong/p/4003725.html
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