Java Quiz | Java Interview Questions and Answers | JAVA |

Explanation:
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interface is a valid keyword.

Option B is wrong because although "String" is a class type in Java, "string" is not a keyword.

Option C is wrong because "Float" is a class type. The keyword for the Java primitive is float.

Option D is wrong because "unsigned" is a keyword in C/C++ but not in Java.

Java Quiz | Java Interview Questions and Answers | JAVA |
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