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法律研究如何在 Java 中编写一个程序从一个文件复制字符到另一个文件中？
按字符逐个字符复制一个文件的内容到另一个文件中
示例
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
public class CopyFiles {
public static void main(String[] args) throws IOException {
//Creating a File object to hold the source file
File source = new File("D:\ExampleDirectory\SampleFile.txt");
//Creating a File object to hold the destination file
File destination = new File("D:\ExampleDirectory\outputFile.txt");
//Creating an FileInputStream object
FileInputStream inputStream = new FileInputStream(source);
//Creating an FileOutputStream object
FileOutputStream outputStream = new FileOutputStream(destination);
//Creating a buffer to hold the data
int length = (int) source.length();
byte[] buffer = new byte[length];
while ((length = inputStream.read(buffer)) > 0) {
outputStream.write(buffer, 0, length);
}
inputStream.close();
outputStream.close();
System.out.println("File copied successfully.......");
}
}输出
File copied successfully.......
更新于： 02-Aug-2019
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