Question 1.
What does the following code print?

int result = 7 / 2;
System.out.println(result);

Question 2.
What does the following code print?

int x = 10;
int y = 3;
int z = x % y + y * 2;
System.out.println(z);

Question 3.
Which of the following is a valid variable declaration in Java?

Question 4.
Which of the following is not a primitive type in Java?

Question 5.
What does this code print?

double x = 9.7;
int y = (int) x;
System.out.println(y);

Question 6.
What is the value of result after this code executes?

int result = 4 + 3 * 2;

Question 7.
Which of the following correctly updates x by adding 5 to its current value?

Question 8.
What is the value of the boolean expression (5 < 10) && (3 == 4)?

Question 9.
What does the following code print?

String s = "APCSA";
System.out.println(s.length());

Question 10.
What does this code print?

String word = "Computer";
System.out.println(word.substring(1, 4));

Question 11.
What is printed by the following code?

String text = "hello world";
System.out.println(text.indexOf("o"));

Question 12.
Which expression correctly checks whether two String variables s1 and s2 have the same contents?

Question 13.
Which Math method returns the square root of a number?

Question 14.
What does the following code print?

System.out.println(Math.pow(2, 3));

Question 15.
Which expression generates a random integer from 1 to 6 (inclusive)?

Question 16.
Which line correctly declares a constant named MAX_SCORE with value 100?

Question 17.
In Java, variables of type String are best described as:

Question 18.
What happens if you try to use a local variable in a method before giving it a value?

Question 19.
Consider this method header:

public double average(int a, int b)

Which statement is true?

Question 20.
Suppose there is a class Dog with a constructor Dog(String n, int a). Which of the following correctly creates a new Dog object?

Question 21.
Which of the following best describes what a class is in Java?

Question 22.
Consider the following method in a class:

public int getScore() {
    return score;
}

This method is best described as:

Question 23.
What does this code print?

System.out.println("AP" + 1 + 2);

Question 24.
What does this code print?

System.out.println(1 + 2 + "AP");

Question 25.
What is the value of result after this code executes?

int a = 2;
int b = 3;
double result = a + b / 2;

Question 26.
What does this code print?

int x = 5;
x++;
System.out.println(x);

Question 27.
What is the value of the boolean expression (3 > 1) || (4 < 2)?

Question 28.
What does the following code print?

int x = 2;
x *= 3 + 1;
System.out.println(x);

Question 29.
Which statement about short-circuit evaluation in Java is true?

Question 30.
What does this code print?

String str = "ap csa";
String result = str.toUpperCase().replace(" ", "");
System.out.println(result);

Question 31.
What is the result of "cat".compareTo("dog")?

Question 32.
Consider:

String s = "Java";
System.out.println(s.substring(0, 2));

What is printed?

Question 33.
Which statement about instance variables (fields) is true?

Question 34.
What happens when you declare:

String name = null;
System.out.println(name.length());

Question 35.
Given the method:

public static void addOne(int x) {
    x = x + 1;
}

What happens to the value of the variable passed into addOne from main?

Question 36.
Given:

public class Student {
    private String name;
    
    public Student(String n) {
        name = n;
    }
    
    public void setName(String n) {
        name = n;
    }
}

Which is true about setName?

Question 37.
What does this code print?

String s1 = "AP";
String s2 = s1;
s1 = s1 + "CSA";
System.out.println(s2);

Question 38.
What is printed by the following code?

int a = 10;
int b = 4;
System.out.println(a % b);

Question 39.
What does this code print?

double d = 5.6;
System.out.println(Math.round(d));

Question 40.
Which of the following correctly creates a String that is an uppercase version of message?

String message = "hello";