package com.hspedu.io_; import org.junit.Test; import java.io.FileWriter; import java.io.IOException; public class TestFileWriter { @Test public void writeFile() { String filePath = "e:\\JavaIO\\FileWriter\\test.txt"; FileWriter fileWriter = null; try { fileWriter = new FileWriter(filePath); fileWriter.write("abc"); } catch (IOException e) { e.printStackTrace(); } finally { try { if (fileWriter != null) { fileWriter.close(); } } catch (IOException e) { e.printStackTrace(); } } } }