Instances of reading, writing and copying IO stream files in Java
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Java
//Construct file class file f = new file (filename);
//Determine whether the directory is f.isdirectory();
//Get the file name in the directory string [] filename = f.list();
//Get the file in the directory file [] files = f.listfiles();
1. How does Java read files
2. How does java write files
3. How does Java copy files
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