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Java Blocks Quiz

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Questions and Answers

What is the purpose of an instance block in Java?

To define static methods

To initialize instance variables (correct)

To handle exceptions in a class

To create new instances of a class

In the given Java code, what will be the output of the InstanceBlock class?

Constructor called Instance block called

Instance block called Constructor called (correct)

Instance block called

Constructor called

What will be the output of the Multiple Instance Block class?

Instance block-1 called Constructor called Instance block-2 called Instance block-3 called

Instance block-3 called Instance block-2 called Instance block-1 called Constructor called

Constructor called Instance block-3 called Instance block-2 called Instance block-1 called

Instance block-1 called Instance block-2 called Instance block-3 called Constructor called (correct)

What is the purpose of the 'display' method in the 'Emp' class?

To print the value of the 'eid' variable Signup and view all the answers

What does the 'eid=111;' line inside the instance block of the 'Emp' class indicate?

Initialization of the 'eid' variable Signup and view all the answers

What is the purpose of the instance block in Java?

The purpose of the instance block in Java is to initialize the instance variables of a class before the constructor is called. Signup and view all the answers

What will be the output of the first Java class 'InstanceBlock'?

The output will be: Instance block called Constructor called Signup and view all the answers

What will be the output of the second Java class 'InstanceBlock' with multiple instance blocks?

The output will be: Instance block-1 called Instance block -2 called Instance block-3 called Constructor called Signup and view all the answers

What does the 'eid=111;' line inside the instance block of the 'Emp' class indicate?

The 'eid=111;' line inside the instance block of the 'Emp' class indicates the initialization of the 'eid' instance variable to the value 111. Signup and view all the answers