码神-day10-java

打印只包含1、3、5、7、9的乘法口诀,并把结果输出到一个文件中；

package day5;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;public class Output {public static void main(String[] args)throws Exception { FileOutputStream yu = null;byte []ab={};try{ yu = new FileOutputStream("F:test/aa.txt");for(int i=1;i<10;i++){for(int j=1;j<=i;j++){if(i%2==0)continue;System.out.print(i + "*" + j + "=" + i*j + "\t");String z =i + "*" + j + "=" + i*j + "\t" ;        ab=z.getBytes();//转换s为byte类型       yu.write(ab);//输出ab数组到指定的文件路径   }System.out.println();String s="\r\n";//换行ab=s.getBytes();yu.write(ab );  }} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}finally {if(yu !=null)yu.close();}}}