Unzip a file in linux using java

Below is the java code which can be used to unzip a folder

try{

String command="unzip -o "+path+""+fname+" -d "+path+""+unzippedfoldername;

Process process1 = Runtime.getRuntime().exec(command);

process1.waitFor();

String removecommand="rm "+path+""+fname;

process1 = Runtime.getRuntime().exec(removecommand);

process1.waitFor(); 

}catch(Exception err)

{

//

}