Java Final EXAM questions and answers 100% guaranteed success.

Java Final EXAM questions and answers 100% guaranteed success. Which of these packages is automatically loaded, so you don't need to import it? 1. t 2. 3. g 4. - correct answers.4. 100% S is an object of the class _________________. 1. Applet 2. Output 3. System 4. PrintStream - correct answers.4. PrintStream 100% Which of these shows the correct way to print a literal number? 1. Sln({123.75}); 2. Sln("123.75"); 3. Sln('123.75'); 4. Sln(123.75); 100% - correct answers.4. Sln(123.75); 100% According to the CS 170 style rules, every method and each class must have a ______________________. 1. Single-line comment 2. Javadoc comment 3. body 4. header - correct answers.2. Javadoc comment 100% The Java keyword that says class B adds something to, or builds upon the existing definition for class A is ____________________. 1. extends 2. import 3. derives 4. inherits - correct answers.1. extends 100% Consider the following statements. double x = -987.33; String y = St("%(9.2f", x); What is the value of y? 1. "(987.33)" 2. "-(987.33)" 3. "-987.33" 4. " (987.33)" - correct answers.4. " (987.33)" 100% If s is a String object, which of these relational expressions is illegal (that is, your code will not compile if you use it) : A. s == "Hi" B. s != "Hi" C. s > "Hi" D. All of these are legal - correct answers.C. s > "Hi" 100% After the execution of the following code, what will be the value of num if the input values are 4 5? int num = readInt(); if (num > 0) num = num + 10; else if (num >= 5) num = num + 15; 1. 4 2. 14 3. 5 4. 15 - correct answers.2. 14 100% What is the result of evaluating the expression below? Your answer must be the correct type: •€€€€€ 2 is an int •€€€€€ 2.0 is a double •€€€€€ "2" is a String 2 * 3 / 4 * 2 / 4.0 + 4.5 - 1 - correct answers.4.0 100% Equals 4.0 (100%) How can a method send a primitive value back to the caller? 1. By assigning the value to one of its parameters 2. It can call its caller with the value 3. By using the return statement 4. It cannot send primitive values back to the caller - correct answers.3. By using the return statement 100% Which of these cannot be used as a case label in a switch statement : A. case 10: B. case x: // assume x is a final int variable C. case 10..20: D. case 'C': - correct answers.C. case 10..20: 100% A loop that searches for a particular value in input is called a(n) : A. counted [or counting] loop B. sentinel loop C. data loop D. endless loop - correct answers.B. sentinel loop 100% What is the output of the following Java code? intx=55; inty=5; switch(x%7) { case0: case1: y++; case2: case3: y=y+2; case4: break; case5: case6: y=y-3; } println(y); 1. 2 2. 8 3. 5 4. None of these - correct answers.1. 2 100% int y = !(12 < 5 || 3 <= 5 && 3 > x) ? 7 : 9 Based on the code above, what is the value of y if x = 4? 1. 3 2. 5 3. 9 4. 7 - correct answers.4. 7 100% Suppose x is 5 and y is 7. What is the value of the following expression? (x != 7) && (x <= y) 1. This is an invalid expression in Java. 2. None of these 3. true 4. false - correct answers.3. true 100% Which of the following loops is guaranteed to execute at least once? 1. counter-controlled while loop 2. do...while loop 3. for loop 4. sentinel-controlled while loop - correct answers.2. do...while loop 100% What is the value of counter after the following statements execute? counter = 0; while (counter <= 50) counter = counter + 3; 1. 53 2. 48 3. 51 4. 50 - correct answers.3. 51 100% int x = 5; int y = 30; do x = x * 2; while (x < y); How many times does the statement above execute?