实训作业-----IO流
package work; import java.io.BufferedWriter; import java.io.File; import java.io.FileWriter; import java.io.IOException; public class OutputData { public OutputData(String str) { File f = new File("data.txt"); try { BufferedWriter bw = new BufferedWriter(new FileWriter(f)); bw.write(str); bw.close(); } catch (IOException e) { // TODO 自动生成的 catch 块 e.printStackTrace(); } } public static void main(String[] args) { String str = "12345abcdef@#%&*软件工程"; new OutputData(str); } }
package work; import java.io.BufferedReader; import java.io.File; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; public class InputData { public InputData() { File f = new File("data.txt"); try { BufferedReader br = new BufferedReader(new FileReader(f)); String str = br.readLine(); System.out.println(str); br.close(); } catch (FileNotFoundException e) { // TODO 自动生成的 catch 块 e.printStackTrace(); } catch (IOException e) { // TODO 自动生成的 catch 块 e.printStackTrace(); } } public static void main(String[] args) { new InputData(); } }