Write it, run it, read the output

Reading · 7 minQuiz · 5 questions2 code drills · run only

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

TASK

In Java, use word = "learnyard" to print its length, emptiness, first and last characters, reassign it with a trailing period and then restore it, print the position and substring for "yard", and confirm that indexOf() and substring() did not change the restored source.

Java

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OUTPUT

Sample

length: 9
empty: false
first: l
last: d
after adding period: learnyard.
after restoring: learnyard
indexOf yard: 5
substring: yard
source after indexOf and substring: learnyard

What a finished answer prints, from the lesson. Nothing has run yet — press Run and this is replaced by your program’s own output.

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