帮忙改一个java程序

来源：百度知道 编辑：UC知道 时间：2024/05/29 16:58:31
import java.io.*;
public class dataIOTest1
{ public static void main(String args[]) ;throw IOException
//定义要写入文件的数据
double prices[]={19.99,9.99,15.99,3.99,4.99};
int units[]={12,8,29,50};
String descs={"java t-shirt", "jaba mug","duke juggling dolls","java pin","java key chain"};

DataOutputStream out=new DataOutputStream(new fileOutputStream("temp.txt"));

for(int i=0;i<prices.length;i++)
{out.writeDouble(double prices[i]);
out.writeChar('\t');
out.writeInt(int units[i]);
out.writeChar('\t');
out.writeChars( chars descs[i]);
out.writeChar('\n');
}
out.close;

double price;
int unit;
String desc;
double total=0.0;
//
try{
while(true)
{price=in.readDouble();

import java.io.*;

public class test {
public static void main(String args[]) throws IOException {
// 定义要写入文件的数据
double prices[] = { 19.99, 9.99, 15.99, 3.99, 4.99 };
int units[] = { 12, 8, 29, 50,31 };
String[] descs = { "java t-shirt", "jaba mug", "duke juggling dolls",
"java pin", "java key chain" };

DataOutputStream out = new DataOutputStream(new FileOutputStream(
"temp.txt"));

for (int i = 0; i < prices.length; i++) {
out.writeDouble(prices[i]);
out.writeChar('\t');
out.writeInt(units[i]);
out.writeChar('\t');
out.writeChars(descs[i]);
out.writeChar('\n');
}
out.close();

double price;
int unit;
String desc;
double total = 0.0;
DataInputStream in = new DataInputStream(
new FileInputStr