Which of the following statements is false?
a. To ensure that the operands in a mixed-type expression are of the same type, Java performs implicit conversion on selected operands.
b. Cast operators are unary operators.
c. Cast operators associate from right to left and are one level lower in precedence than the multiplicative operators.
d. Cast operators are formed by placing parentheses around the name of a type.
c. Cast operators associate from right to left and are one level lower in precedence than the multiplicative operators.
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Which of the following statements will print a single line containing "hello there"?
a. System.out.println("hello"); System.out.println(" there"); b. System.out.println("hello" , " there"); c. System.out.println("hello"); System.out.print(" there"); d. System.out.print("hello"); System.out.println(" there");
A tuple’s ________ creates a tuple in which each member is value initialized—primitive type values are set to 0 or the equivalent of 0 and objects of class types are initialized with their default constructors.
a. copy constructor b. move assignment c. move constructor d. default constructor
Answer the following statements true (T) or false (F)
1. Symmetric encryption remains by far the most widely used of the two types of encryption. 2. Rotor machines are sophisticated precomputer hardware devices that use substitution techniques. 3. Symmetric encryption is a form of cryptosystem in which encryption and decryption are performed using different keys. It is also known as non-conventional encryption. 4. With the use of symmetric encryption, the principal security problem is maintaining the secrecy of the key. 5. The process of converting from plaintext to ciphertext is known as deciphering or decryption.
The ________ button is used to hide or display comments in a presentation
Fill in the blank(s) with correct word