[Solved] What is the output of the following code?Integer i = Integer.valueOf("50"); int j = i.intValue(); System.out.println(j + 10); | Java

Java - Wrapper Classes

What is the output of the following code?

Integer i = Integer.valueOf("50");
int j = i.intValue();
System.out.println(j + 10);

A60

B5010

CCompilation error

DRuntime exception

Step-by-Step Solution

Solution:

Step 1: Understand Integer.valueOf and intValue methods
Integer.valueOf("50") returns Integer object with value 50. intValue() returns primitive int 50.
Step 2: Calculate output of j + 10
j is 50, adding 10 results in 60, printed as integer.
Final Answer:
60 -> Option A
Quick Check:
Integer to int conversion and addition = 60 [OK]

Quick Trick: intValue() extracts primitive int from Integer object [OK]

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