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CMIS 141 7984 Introductory Programming (2158)

A non-local boolean variable is declared with the following Java code:

boolean myVar;

What is the value of myVar?

Question 2 (1 point)

Select the valid Java comments from the statements below.

Question 3 (1 point)

What is the filename extension used for all Java compiled files.

Question 4 (1 point)

Select the correct line of Java code to assign 1000 to an int variable named myValue.

Question 5 (1 point)

Will the following Java code compile and run without errors?
public class QuizItem
{
   public static void main(String[] args)
     {
     final int age = 38;
     age = 39;
     System.out.println("Age is " + age);
   }
}

Question 6 (1 point)

What is the output from the following Java code?

public class Week1Quiz {

public static void main (String[] args) {

System.out.println ("Welcome");

System.out.println ("to");

System.out.print ("UMUC!");

}

Question 7 (1 point)

Given the following sequence of Java code:
int var = 4;
var++;
var = var + 2;
var--;
var = -var;

What is the final value of var?

Question 8 (1 point)

What character is assigned to the variable myChar in the following line of Java code?

char value = '\u0023';

Question 9 (1 point)

The Java Application Programming Interface (API) is:

Question 10 (1 point)

Given the following sequence of Java code:
int var1 = 0b0001;
int var2 = 0b1111;
int results1 = var1 & var2;
int results2 = var1 | var2;
int results3 = var1 ^ var2;
int printit = results1 + results2 + results3;

What are the values for results1, results2, results3 and printit after executing the code?

Question 11 (1 point)

What are bytecodes?

Question 12 (1 point)

Select the invalid declaration from the lines of Java code below

Question 13 (1 point)

If we declared the following variables in Java

int age = 27;
     int cafe = 0xCAFE;
     int number1 =0b0001;

What is the output for the following Java statement?

System.out.println(age + cafe + number1);

Question 14 (1 point)

What is the filename extension used for all Java source files.

Question 15 (1 point)

What development tool do you use to compile Java code?

Question 16 (1 point)

What is the output from the following Java code?

public class Week1Quiz {

public static void main (String[] args) {

System.out.print ("Welcome");

System.out.print ("to ");

System.out.println ("UMUC");

System.out.print ("!");

}

Question 17 (1 point)

What is the output from the following Java code?

public class Week1Quiz {

public static void main (String[] args) {

System.out.print ("Welcome");

System.out.print ("to");

System.out.print ("UMUC");

}

Question 18 (1 point)

Select the line of Java code that will correctly declare a float variable named average and assign the variable a value of 3.4.

Question 19 (1 point)

The following java code was created to print “Hello, World!”

public class JavaQuiz

{

public static void main (String[] args)

{

System.out.println ("Hello, World!");

}

What is the name of the Java source file?

Question 20 (1 point)

Which of the following is an invalid Java statement:

Question 21 (1 point)

What is the output from the following Java code?

public class Week1Quiz {

public static void main (String[] args) {

System.out.print ("Welcome");

System.out.print ("to");

System.out.print ("UMUC");

}

Question 22 (1 point)

Select the Java code that will correctly declare a boolean variable named success and assign it a value of false.

Question 23 (1 point)

Given the following sequence of Java code:
int var1 = 4;
int var2 = 6;
int var3 = 10;
int results = (var1 + var2) * var3 /(var1 + var3) - var2%var1;

What is the values of results after executing the code?