What is the output for the below code public class Test...

This question belongs to Java Program Data Types And Variables

Data Types and Variables

What is the output for the below code?

public class Test{
      int _$;
      int $7;
      int do;

      public static void main(String argv[]){
            Test test = new Test();
            test.$7=7;
            test.do=9;
            System.out.println(test.$7);
            System.out.println(test.do);
            System.out.println(test._$);
      }
}

A) 7 9 0 B) 7 0 0 C) Compile error - $7 is not valid identifier. D) Compile error - do is not valid identifier. E) None of these

Answer & Solution

Correct Answer: Option D

$7 is valid identifier. Identifiers must start with a letter, a currency character ($), or underscore ( _ ). Identifiers cannot start with a number. You can't use a Java keyword as an identifier. do is a Java keyword.

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What is the output for the below code public class Test...

What is the output for the below code? public class Test{ int _$; int $7; int do; public static void main(String argv[]){ Test test = new Test(); test.$7=7; test.do=9; System.out.println(test.$7); System.out.println(test.do); System.out.println(test._$); } }

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Related Questions on Data Types and Variables

What is the output for the below code?

`public class Test{ int _$; int $7; int do; public static void main(String argv[]){ Test test = new Test(); test.$7=7; test.do=9; System.out.println(test.$7); System.out.println(test.do); System.out.println(test._$); } }`