자바연수) chapter4 마지막문제

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

public class list4_24 {

public static void main(String[] args) {

BufferedReader Reader = new BufferedReader(new InputStreamReader(System.in));

int select = 1;

while(true){

try{

String list =Reader.readLine();

select = Integer.parseInt(list);

break;

}catch(IOException e){

System.out.println(e);

}catch(NumberFormatException e){

System.out.println("에러/ 재입력이 필요함.");

}

}

for(int i=0;i<=select;i++){

for(int j=select;j>=i;j--){

System.out.print(" ");

}

for(int j=1;j<=((i - 1) * 2 + 1);j++){

System.out.print(i%10);

}

System.out.println("");

}

}

}