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();}}