...
package com.javarush.task.task19.task1923;
/*
Слова с цифрами
*/
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
public class Solution {
public static void main(String[] args)throws IOException {
FileReader fileInputStream = new FileReader(args[0]);
FileWriter fileWriter = new FileWriter(args[1]);
StringBuilder stringBuilder = new StringBuilder();
while(fileInputStream.ready()){
stringBuilder.append((char)fileInputStream.read());
}
fileInputStream.close();
String[] arr = stringBuilder.toString().split(" ");
for(String s : arr){
boolean flag = true;
char[] ar = s.toCharArray();
for(char ch : ar){
if((47<(int)ch)&&((int)ch<58)){
if(flag) {
fileWriter.write(s + " ");
flag = false;
}
}
}
}
fileWriter.close();
}
}