Question

写一个java程序，分别统计并输出文本文件中元音字母a，e，i，o，u的个数

代码

Answer 1

import java.io.*;
public class Input1
{
public static void sumChar(byte[] b) //字母统计
{
int n=0;
for (int i=0;i<b.length ;i++ )
{ if(b[i]=='a'||b[i]=='e'||b[i]=='i'||b[i]=='o'||b[i]=='u') n++;}
System.out.println("char count="+n);
}
public static void main(String[] args) throws IOException
{
System.out.println("Input: ");
byte buffer[] = new byte[512]; //输入缓冲区
int count = System.in.read(buffer);
System.out.println("Output: "); //读取标准输入流放入buffer，并返回读取数
for (int i=0;i<count;i++) //输出buffer元素值
{System.out.print(" "+buffer[i]);}
System.out.println();
for (int i=0;i<count;i++) //按字符方式输出buffer
{System.out.print((char) buffer[i]);}
System.out.println("count = "+ count); //buffer实际长度
sumChar(buffer);
}
}