Write it, run it, read the output

This is a scratch drill — your code runs, nothing is graded or recorded. No test cases, no expected output, no verdict.

TASK

Using Java standard library methods on the running example, print the length of text, extract and print "Java", verify that index 6 holds an uppercase character, print "LEARN JAVA", and then print the unchanged original text.

10
Java
true
LEARN JAVA
Learn Java