CodeEval - Swap Numbers - Easy

import java.io.*;
import java.util.StringTokenizer;

public class Main {
    public static void main (String[] args) throws IOException {
        BufferedReader buffer = new BufferedReader(new InputStreamReader(System.in));
        String line;
        StringBuffer out=new StringBuffer();
        while ((line = buffer.readLine()) != null) {
            if(line.equals("#")){
                break;
            }
            StringTokenizer st=new StringTokenizer(line);
            int n=st.countTokens();
            for(int i=0;i<n;i++){
                if(i>0){
                    out.append(' ');
                }
                String nextToken=st.nextToken();
                out.append(nextToken.charAt(nextToken.length()-1))
                   .append(nextToken.substring(1,nextToken.length()-1))
                   .append(nextToken.charAt(0));
            }
            out.append('\n');
        }
        System.out.print(out);
    }
}

CodeEval - Read More - Easy

import java.io.*;

public class Main {
    public static void main (String[] args) throws IOException {
       
        BufferedReader buffer = new BufferedReader(new InputStreamReader(System.in));
        String line;
        StringBuffer out=new StringBuffer();
        while ((line = buffer.readLine()) != null) {
            line = line.trim();
            if(line.length()>55){
                if(line.charAt(39)==' '){
                   out.append(line.substring(0, 39));
                }
                else{
                   boolean flag=true;
                   for(int i=39;i>0;i--){
                       if(line.charAt(i)==' '){
                           out.append(line.substring(0, i));
                           flag=false;
                           break;
                       }
                   }
                   if(flag){
                       out.append(line.substring(0, 40));
                   }
                }
                out.append("... <Read More>");
            }else{
                out.append(line);
            }
            out.append("\n");
        }
        System.out.print(out);
    }
}