RRB Junior Engineer / DMS / CMA 2019 · Question 3688 of 3719

What will be the output of the following Java program? class test {public static void main (String args [ ]) { System.out.println(20 + 30 + "Java"); System.out.println("Java" + 20 + 30); } }

A50 Java Java 20 30
B20 30 Java Java 50
C2030Java Java50
D50Java Java2030Correct

Answer: D. 50Java Java2030

Explanation

According to the Associativity Rule. class test {public static void main (String args [ ]) { System.out.println(20 + 30 + "Java"); ; // evaluated as (10 + 20) + "Java" System.out.println("Java" + 20 + 30); // evaluated as("Java" + 10) + 20 . } } So Output will be 50Java Java2030 Therefore option 4 is correct.

Source: RRB JE 2019 (CBT 2) (IT) Previous Year Paper (30 Aug 2019) — prepp.in solved-paper PDF (answer key with explanations) · reliable-secondary

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