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Groovy example source code file (revcomp.java)

This example Groovy source code file (revcomp.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

acbdghk\nmnsrutwvyacbdghkmnsrutwvy, acbdghk\nmnsrutwvyacbdghkmnsrutwvy, io, ioexception, ioexception, string, string, tgvhcdm\nknsyaawbrtgvhcdmknsyaawbr, tgvhcdm\nknsyaawbrtgvhcdmknsyaawbr

The Groovy revcomp.java source code

/*
 * The Computer Language Benchmarks Game
 * http://shootout.alioth.debian.org/
 * contributed by Anthony Donnefort
 * redone by Enotus 2010-11-20
 */

import java.io.*;

public final class revcomp {

    static final byte[] map=new byte[128];
        static{
        String[] mm={"ACBDGHK\nMNSRUTWVYacbdghkmnsrutwvy","TGVHCDM\nKNSYAAWBRTGVHCDMKNSYAAWBR"};
        for(int i=0;i<mm[0].length();i++) map[mm[0].charAt(i)]=(byte)mm[1].charAt(i);
    } 

    static void reverse(byte[] buf,int begin,int end){
        while(true){
            byte bb=buf[begin];if(bb=='\n') bb=buf[++begin];
            byte be=buf[end];if(be=='\n') be=buf[--end];
            if(begin>end) break;
            buf[begin++]=map[be];
            buf[end--]=map[bb];
        }
    }
      
    public static void main(String[] args) throws IOException{
        final byte[] buf=new byte[System.in.available()];
        System.in.read(buf);

        for(int i=0;i<buf.length;){
            while(buf[i++]!='\n');
            int data=i; while(i<buf.length && buf[i++]!='>');
            reverse(buf,data,i-2);
        }

        System.out.write(buf);
    }
}

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