General Recommended Feedback for Java programs of a computational programming exercise

This data set contains list of submitted Java programs based on series of online lab exercises from year 2013 to 2015. The programs were submitted by first year computer science students from Faculty of Informatics and Computing, Universiti Sultan Zainal Abidin, Malaysia who undertaking Introductory Computer Programming subject. There were 67, 18 and 47 of participated students in 2013, 2014 and 2015 respectively. The submitted programs were all of their solution attempts in answering a computational programming question. The question was as the following: Write a program that will read string. Then your program should show all the string character using * except for character 2, output its real character. sample input. Apology sample output. *p*****