IO流_输出语句用字符缓冲流改进

package cn.itcast_04;

import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;

/*
 * 转换流的应用。
 */
public class SystemOutDemo2 {
  public static void main(String[] args) throws IOException {
    // 标准输出流

    BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(
        System.out));

    bw.write("hello");
    bw.newLine();
    bw.write("world");
    bw.newLine();
    bw.write("java");
    bw.flush();

    bw.close();
  }
}