Java Chapter 2 Quiz

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Gaddis – Starting Out With Java 5 – From Control Structures to Objects Chapter 02 – Java Fundamentals Multiple Choice 1. To compile a program named, First, use the following command a. java-source 1.5 First.java b. javac-source 1.5 First c. javac First.java d. compile First.javac ANS: C 2. A Java program must have at least one a. Class definition b. Variable c. Comment d. System.out.println(); statement ANS: A 3. All Java lines of code end with semicolons. a. True b. False ANS: A 4. The ____ is normally considered the standard output and standard input devices, and usually refer to the monitor and keyboard. a. CRT b. CPU c. secondary storage devices d. console ANS: D 5. If the following Java statements are executed, what will be…show more content…
String name = “John Doe”; a. John Doe b. The memory address where “John Doe” is located c. name d. The memory address where name is located ANS: B 22. What will be displayed as a result of executing the following code? int x = 6; String msg = “I am enjoying this class.”; String msg1 = msg.toUpperCase(); String msg2 = msg.toLowerCase(); char ltr = msg.charAt(x); int strSize = msg.length(); System.out.println(msg); System.out.println(msg1); System.out.println(msg2); System.out.println(“Character at index x = ” + ltr); System.out.println(“msg has ” + strSize + “characters.”); a. I am enjoying this class. I AM ENJOYING THIS CLASS. i am enjoying this class. Character at index x = e msg has 24 characters. b. I am enjoying this class. I AM ENJOYING THIS CLASS. i am enjoying this class. Character at index x = e msg has 25 characters. 14 Gaddis • Starting Out with Java 5: From Control Structures to Objects c. I am enjoying this class. I AM ENJOYING THIS CLASS. i am enjoying this class. Character at index x = n msg has 24 characters. d. I am enjoying this class. I AM ENJOYING THIS CLASS. i am enjoying this class. Character at index x = n msg has 25 characters. ANS: D 23. A variable’s scope is the part of the program that has access to the variable. a. True b. False ANS: A 24. What will be displayed as a result of executing the following code? public class test { public static void main(String[] args) { int value1
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