Java Programming
primer-original-v2mediumJava Programming05 Regular Expressionprimer-original-v2

Predict the output of the below code : String emailId="john#global.com"; System.out.println(emailId.indexOf('@'));

Answer options

A
indexOf('@'));
B
Any negative integer
C
-1
D
0
E
1

Correct answer: -1

Detailed Solution & Conceptual Analysis

This question has been retained as-is due to its unique context.

Key Engineering Takeaway

In Java Programming, understanding the underlying mechanics of Java Programming is critical for writing performant, bug-free production code and passing rigorous technical architecture reviews.

Related Java Programming questions

Which AWS service provides a structured approach to review and improve cloud workloads using best practices?Which AWS Well-Architected Framework pillar is dedicated to reducing costs while maintaining system performance and secu…Which AWS Well-Architected Framework pillar ensures that computing resources are used efficiently to meet performance go…Which AWS device is designed for edge computing and secure data transfer in rugged environments?Which AWS service is used to protect web applications from common web exploits like SQL injection and XSS?Which of the following database services support dynamic schema?

Practice more Java Programming questions

PrimerPrep has independently reviewed practice questions and coding exercises — all free.

Java Programming practice setAll subjects