CMIS 141 7984 Introductory Programming (2158)

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Question 1 (1 point)

According to the Google style guide, Java variable and class names should be named using UpperCamelCase.

Question 2 (1 point)

Analyze the following code:

public class Test {
   public static void main (String args[]) {
     int i = 0;
     for (i = 0; i < 10; i++);
       System.out.println(i + 4);
   }
}

Question 3 (1 point)

What is the output of the following Java code? ____________________

public class Quizzes {
public static void main(String args[]){
   String string1 = "243";
   System.out.println(Integer.parseInt(string1));
   }
}

Question 4 (1 point)

What is the value of balance after the following code is executed?

int balance = 10;
while (balance >= 1) {
if (balance < 9) {
break;
}
balance = balance - 9;
}

Question 5 (1 point)

Which of the loop statements always have their body executed at least once.

Question 6 (1 point)

What is the output of the following Java code: ______________________.

public class Quizzes {
public static void main(String args[]){
      double angle = 90;
      angle = Math.toRadians(angle);
      System.out.println(Math.sin(angle) + Math.pow(Math.cos(angle),2));
   }
}

Question 7 (1 point)

What is the output of the following Java code: ______________________.

public class Quizzes {
public static void main(String args[]){
      int momAge = 62;
      int dadAge = 64;
      System.out.println(Math.max(momAge, dadAge) + Math.min(momAge, dadAge));
   }
}

Question 8 (1 point)

Which of the following expression yields an integer between 0 and 100, inclusive?

Question 9 (1 point)

What is the output of the following Java code: ______________________.

public class Quizzes {
public static void main(String args[]){
       double length = 81;
       double width = 144;
      System.out.println(Math.sqrt(length) + Math.sqrt(width));
   }
}

Question 10 (1 point)

Analyze the following code.

    int x = 0;
    if (x > 0);
    {
      System.out.println("x");
    }

Question 11 (1 point)

What is the value of balance after the following code is executed?

int balance = 10;
while (balance >= 1) {
if (balance < 9) {
continue;
}
balance = balance - 9;
}

Question 12 (1 point)

Using the Google style guide document, select the proper declaration of a Java constant.

Question 13 (1 point)

Analyze the following code.

    int x = 1;
    while (0 < x) && (x < 100)
      System.out.println(x++);

Question 14 (1 point)

How many times will the following code print "Welcome to Java"?

int count = 0;
do {
System.out.println("Welcome to Java");
count++;
} while (count < 10);

Question 15 (1 point)

Which of the following values would read using the Scanner nextShort() without producing an error?

Question 16 (1 point)

What is the output of the following code:

int x = 9;
int y = 8;
int z = 7;

if (x > 9) {
if (y > 8){
    System.out.println("x > 9 and y > 8");
}
else if (z >= 7){
    System.out.println("x <= 9 and z >= 7");
}
else {
    System.out.println("x <= 9 and z < 7");
}
}

Question 17 (1 point)

How many times does the following loop iterate?

public class Quizzes {
public static void main(String args[]){
   int cnt = 1;
   int maxLoop = 30;
   while (cnt < maxLoop) {
        if (cnt==3) {
          break;
            }
            cnt++;
        }
   }
}

Question 18 (1 point)

What is the output of the following Java code? ___________________

public class Quizzes {
public static void main(String args[]){
   String string1 = "CMIS141 ";
   String string2 = "is all";
   String string3 = "about Java!";
   String concat = string3.concat(string2).concat(string1);
   System.out.println(concat.length());
   }
}

Question 19 (1 point)

What is the output of the following Java code: ____________________.

public class Quizzes {
public static void main(String args[]){
       double examAvg = 85.9983;
       System.out.println(Math.ceil(examAvg));
   }
}

Question 20 (1 point)

What is the output of the following fragment?

int i = 1;
int j = 1;
while (i < 5) {
i++;
j = j * 2;
}
System.out.println(j);

Question 21 (1 point)

What method would you use in the Scanner class to read an int from standard input in Java?

Question 22 (1 point)

What is y after the following for loop statement is executed?

int y = 0;
for (int i = 0; i < 10; i++) {
y += 1;
}

Question 23 (1 point)

The following Java code contains valid brace placement according to the Google style guide

public class MyClass {
    public static void main(String[] args)
    {
   System.out.println("Welcome to CMIS 141");
    } // End of main
} // End class

Question 24 (1 point)

Analyze the following two code fragments.

(i)
    int x = 5;
    if (0 < x) && (x < 100)
      System.out.println("x is between 1 and 100");

(ii)
    int x = 5;
    if (0 < x && x < 100)
      System.out.println("x is between 1 and 100");