Java Interview Guide : 200+ Interview Questions and Answers - toString method
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the default behavior of the toString method in Java?
It returns a null value.
It throws an error if not overridden.
It prints the object's attributes.
It prints the class name and memory location.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to override the toString method?
To improve memory efficiency.
To provide a meaningful string representation of the object.
To enable object serialization.
To enhance security.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a mandatory requirement for the toString method signature?
It must throw an exception.
It must be private.
It must return a string.
It must accept parameters.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which tool can be used to generate the toString method in Java?
Visual Studio
Eclipse
IntelliJ IDEA
NetBeans
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the recommended formatting style for the toString method for better performance?
String concatenation
String builder
String buffer
String format
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