package test; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.Arrays; import javax.swing.JFileChooser; public class helloworld { public static void main(String[] args) throws IOException { JFileChooser ch = new JFileChooser(); /*ch.showOpenDialog(null); ch.showSaveDialog(null);*/ BufferedReader br; BufferedWriter bw; StringBuffer buffer = new StringBuffer(); int result = ch.showOpenDialog(null); if(result == JFileChooser.APPROVE_OPTION) { File file = ch.getSelectedFile(); br = new BufferedReader(new FileReader(file)); String line; while((line = br.readLine())!=null) { buffer.append(line); } System.out.println(buffer); br.close(); } result = ch.showSaveDialog(null); if(result == JFileChooser.APPROVE_OPTION) { File file = ch.getSelectedFile(); bw = new BufferedWriter(new FileWriter(file)); bw.write(buffer.toString()); bw.flush(); bw.close(); } } }
file_chooser
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转载自blog.csdn.net/shadowam/article/details/80002350
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