Exam 4: Fundamental Data Types

What is the output of the following code snippet? public static void main(String[] args){ { String str1; Str1 = "I LOVE MY COUNTRY"; String str2 = str1.substring(4, 11); System.out.println(str2); }

What will be printed by the statements below? Int x = 20; Int y = x; X += 3; Y *= 2; System.out.print ("x = " + x + ", y = " + y);

Which one of the following refers to a number constant that appears in code without explanation?

What is wrong with the following code snippet? public class Area { Public static void main(String[] args) { Int width = 10; Height = 20.00; System.out.println("area = " + (width * height)); } }

What is the output of the following code snippet? public static void main(String[] args) { Int s; Double f = 365.25; S = f / 10; System.out.println(s); }

Which operator is used to concatenate two or more strings?

What will be printed by the statement below? System.out.print ("O\"my\t\\\"no!");

What is the result of the following code snippet? public static void main(String[] args) { Double circleRadius; Double circleVolume = 22 / 7 * circleRadius * circleRadius; System.out.println(circleVolume); }

What does the following statement sequence print? final String str = "Java"; Str += " is powerful"; System.out.println(str);

Which of the following statements with comments is(are) valid? I. int cnt = 0; /* Set count to 0 II. int cnt = 0; /* Set count to 0 */ III. int cnt = 0; // Set count to 0

What is the output of the following statement sequence? public static void main(String[] args) { Int x = 100.0 % 6.0; System.out.println(x); }

Which is the Java equivalent of the following mathematical expression? c = (√a + √b)²

Which statement about number literals in Java is false?

What will be printed by the statements below? Int x = 20; Int y = x; X++; Y--; System.out.print ("x = " + x + ", y = " + y); X = 21, y = 19

Which one of the following is a correct representation of the given mathematical expression in Java?

Which one of the following operators computes the remainder of an integer division?

Which of the given statements generates the following output? \\\"///

) What are the values of num1 and num2 after this snippet executes? double num1 = 4.20; Double num2 = num1 * 10 + 5.0;

What is the output of the following code snippet? public static void main(String[] args) { Int var1 = 10; Int var2 = 2; Int var3 = 20; Var3 = var3 / (var1 % var2); System.out.println(var3); }

Which of the following is the Java equivalent of the following mathematical expression? p = 2 . $\pi$ . (radius)³