CSE 110

Which of the following are Java primitive data types? a. String b. float c. Random d. boolean e. char f. int g. Array h. math i. double j. class k. none of these CORRECT ANSWER b, d, e, f, i Which of the following Java literals have the data type int? a. 123 b. 3f c. 3.14 d. -3 e. 'a' f. "3.0" g. 'n' h. 3.14f i. true j. false

1) Consider the following line of code: int[] somearray = new int[30]; Which one of the following options is a valid line of code for displaying the twenty-eighth element of somearray? a) Sln(somearray[28]); b) Sln(somearray(28)); c) Sln(somearray(27)); d) Sln(somearray[27]); CORRECT ANSWER d Identify the correct statement for defining an integer array named numarray of ten elements. a) int[] numarray = new int[9]; b) int[] numarray = new int[10]; c) int[10] numarray; d) int...

Given the following class definition, which of the following are considered part of the class's public interface? public class CashRegister { public static final double DIME_VALUE = 0.1; private state int objectcounter; public void updateDimes(int dimes) {. . .} private boolean update counter(int counter) {. . .} } CORRECT ANSWER DIME_VALUE and updateDimes Given the following class definition, which of the following are considered part of the class's public interface? public...

source code is _______ readable CORRECT ANSWER human byte code is _______ readable CORRECT ANSWER machine printing a statement in java CORRECT ANSWER Sln("Hello world"); compiling CORRECT ANSWER translates the source code (.java) into the byte code (.class) .java CORRECT ANSWER source code there should be a _________ at the end of each statement CORRECT ANSWER semicolon what is the hardware of a computer? CORRECT ANSWER the physical, tangible parts of a computer (keyboard, mo...

What is software engineering? Why do we need it? What are the goals? CORRECT ANSWER An application of engineering to the design, development, implementation, testing and maintenance of software in a systematic method. Software is important and we need a method to implement it efficiently. What are the stages in the waterfall model? What does each accomplish? CORRECT ANSWER -Requirements -Design -Implementation -Verication -operation What is the often fatal flaw of the waterfall model ...

What is the purpose of an object's instance variables? CORRECT ANSWER To store the data for a single instance of a class. Suppose you want to work with objects of the Student class. What do you need to know? CORRECT ANSWER The public interface of the class. T/F: S is an object CORRECT ANSWER True T/F: String is an object CORRECT ANSWER False T/F: Suppose that a new version of Java is released, and that the Java compiler changes the way that string objects store characters. If the st...

software CORRECT ANSWER collection of programs that a computer executes computer CORRECT ANSWER machine that executes a program computer programming CORRECT ANSWER act of designing and implementing a computer program Central Processing Unit CORRECT ANSWER preforms program control and data processing; single silicon chip made from millions of transistors secondary storage CORRECT ANSWER programs that aren't running are stored here high level programming languages CORRECT ANSWER in...

1.What does a compiler do?(a) Translates machine instructions to higher level languages(b) Translates programs written in a high-level language into machine code. (c) Translates user programs to Java Programs (d) None of the above CORRECT ANSWER (b) Translates programs written in a high-level language into machine code. 2.Consider the following Java Program public class VendingMachine{ public static void main(String[] args){ Sln("Please insert 25c"); } } By what name would you save th...

Which of the following refers to a collection of programs that a computer executes? CORRECT ANSWER Software Computers are machines that CORRECT ANSWER execute programs Computer programming is CORRECT ANSWER the act of designing and implementing a computer program Consider the following statements regarding computers: I. Computers can execute a large number of instructions in a fraction of a second. II. Computer application areas mainly target the research and scientific communitie...