[Kuriin]

Well, I learn a lot when people help me as I can look at their code and use it for future reference.

keyboard.nextString();
str1 = keyboard.nextString();
str1.length();
str1.charAt(i);
str1.indexOf(char);

date = keyboard.nextString();
eurodate = date.substring(3, 4) + "-" + date.substring(0, 1) + "-" + date.substring(6, 9);



As you can tell, I'm still sort of confused. And, where did you get the numbers for 3,4, 6,9, and 0,1?