Reverse a given sentence in Java

Question

Can anyone tell me how to write a Java program to reverse a given sentence?

For example, if the input is:

\"This is an interview question\"

Answer 1

a every boring bit of java:

List l = new ArrayList(Arrays.asList("this is an interview question".split("\\s")));
Collections.reverse(l);
StringBuffer b = new StringBuffer();
for( String s : l ){
    b.append(s).append(' ');
}
b.toString().trim();

in groovy it's a little bit more readable:

"this is an interview question"
    .split("\\s")
    .reverse()
    .join(' ')