在Java中使用ProcessBuilder执行命令

Question

I want to run the following command from a java file command : " java hello < C:\\iptest\\input.txt > C:\\outtest\\name.txt " hello " will take input from " C:\\iptest\\input.txt " and will produce an output file at " C:\\outtest\\name.txt ". codes i have done

       String command[]={"java","hello","< C:\\iptest\\input.txt >","C:\outtest\name.txt"};
       ProcessBuilder pb=new ProcessBuilder(command);
       pb.directory(new File("E:\"));

and now how to go forward i have no idea .Please Help!!

Answer 1

Here is a link to the ProcessBuilder definition on Oracle, which explains how to use this class. Typically, this is used for executing non-java processes, eg .BAT or .EXE processes, but I suppose you could use it to execute any process you wish.

http://docs.oracle.com/javase/7/docs/api/java/lang/ProcessBuilder.html