1. which of the following is a legal identifier in Java?A. 7sum B. keyword C. ales tax D. switch2. Java passes arguments to a method usingA. call by reference B. None C. all by value D. Both3. Which...

1. which of the following is a legal identifier in Java?A. 7sum B. keyword C. ales tax D. switch2. Java passes arguments to a method usingA. call by reference B. None C. all by value D. Both3. Which of the following best describe the usage of continue statement in a loop:A. AllB. It ends the loopC. It ends the current iterationD. It terminates the execution of the program4. Identifiers is a :A. Name given to a variable, class or methodB. Class, variable or methodC. name given to variableD. name given to class