Update java-multiple-choice-questions-answers.md

Author: learning-zone

java-multiple-choice-questions-answers.md

@@ -225,12 +225,14 @@ A. double num1, int num2 = 0;
 **Explanation**: A. Option A does not compile because Java does not allow declaring different types as part of the same declaration. 
 
 #### Q. What is the output of the following?
+```java
 public static void main(String... args) {
    String chair, table = "metal";
    chair = chair + table;
    System.out.println(chair);
 } 
-A. metal  
+```
+A. metal    
 B. metalmetal  
 C. nullmetal  
 D. The code does not compile