Explain JAVA code

Posted by MIW on Stack Overflow See other posts from Stack Overflow or by MIW
Published on 2010-03-20T01:45:54Z Indexed on 2010/03/20 1:51 UTC
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homework

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mutation

I need some help to explain the meaning from line 5 to line 9. Thanks

String words = "Rain Rain go away";
String mutation1, mutation2, mutation3, mutation4;
mutation1 = words.toUpperCase();
System.out.println ("** " + mutation1 + " Nursery Rhyme **");
mutation1 = words.concat ("\nCome again another day");
mutation2 = "Johnny Johnny wants to play";
mutation3 = mutation2.replace (mutation2.charAt(5), 'i');
mutation4 = mutation3.substring (7, 27);
System.out.print ("\'" + mutation1 + "\n" + mutation4 + "\'\n");

10.System.out.println ("Title length: " + words.length());

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