Even if the condition is false at the first execution a while loop at least executes once. True False A while loop can be used both as an event-controlled loop and as a count controlled loop. True False
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JAVA
Even if the condition is false at the first execution a while loop at least executes once.
True
False
A while loop can be used both as an event-controlled loop and as a count controlled loop.
True
False
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- JAVA The loop continuation condition is the inverse of the loop termination condition. True FalseThis test can only be taken once. Force Completion This test can be saved and resumed at any point until time has expired. The timer will continue to run if you leave the test. Your answers are saved automatically. • Show Timer ¥ Question Completion Status: QUESTION 1 What is the difference between a while loop and a do-while loop? O while loop checks the condition before the loop begins, whereas the do-while loop executes the body at least once before checking the condition. O while loop is used for counter-controlled and do-while, is used for a sentinel loop. O while loop is used for selection controlled and do-while is used for an infinite loop. O while loop is used for endless controlled control and do-while, is used for counter-controlled loop. Save All Ans Click Save and Submit to save and submit. Click Save All Answers to save all answers. DELLUsing a Sentinel Value to Control a while Loop Summary In this lab, you write a while loop that uses a sentinel value to control a loop in a Java program that has been provided. You also write the statements that make up the body of the loop. The source code file already contains the necessary variable declarations and output statements. Each theater patron enters a value from 0 to 4 indicating the number of stars the patron awards to the Guide’s featured movie of the week. The program executes continuously until the theater manager enters a negative number to quit. At the end of the program, you should display the average star rating for the movie. Instructions Ensure the file named MovieGuide.java is open. Write the while loop using a sentinel value to control the loop, and write the statements that make up the body of the loop to calculate the average star rating. Execute the program by clicking Run. Input the following: 0, 3, 4, 4, 1, 1, 2, -1 Check that the average…
- computer programming Loop is used to repeat a sequence of actions or statements many times. Simplydescribe the differences between for-loop and while-loop.The term "Pre-test" means that The loop is tested after the body statements are run. OThe loop is tested after the loop is run through for the first time OThe loop will be tested before the statements to be repeated are executed, even once. OThe loop will be tested before the next iteration (after the first)In Java A while loop reads integers from input. Write an expression that executes the while loop until a positive integer is read from input. Ex: If the input is -20 -43 -25 -22 15, then the output is:User entered -20User entered -43User entered -25User entered -22Loop terminated while () {
- Using a Counter-Controlled whileLoop Summary In this lab, you use a counter-controlled while loop in a Java program provided for you. When completed, the program should print the numbers 0 through 10, along with their values multiplied by 2 and by 10. The data file contains the necessary variable declarations and some output statements. Instructions Ensure the file named Multiply.java is open. Write a counter-controlled while loop that uses the loop control variable to take on the values 0 through 10. Remember to initialize the loop control variable before the program enters the loop. In the body of the loop, multiply the value of the loop control variable by 2 and by 10. Remember to change the value of the loop control variable in the body of the loop. Execute the program by clicking Run. Record the output of this program.All programming languages have a loop capability. Looping is the program logic’s ability to repeat one or more lines of code either: A set number of times, a “for loop” (i.e. 10, 100, 500, 763 or more times) An “unknown” number of times (i.e. loop terminates if a tested condition becomes “true” or as long as the tested condition remains “false”), a “while” loop, a “do until” loop, a “do while” loop. This Lab exercise demonstrates the use of the “For Loop”, a standard loop in all programming languages. C++ standard For Loop format looks like: For (n = 1; n <= 100; n++) { Loop line 1 code; Loop line 2 code; Loop line 3 code; Loop line N code; } The loop code needs: A “loop counter variable” (n in the above example) to keep track of how many iterations this loop has run A starting value (i.e. 1 in the above example) A stop test (i.e. run as…True or False ___(4) In a while loop, the body of the loop has to be executed at least once whether the test is true or not. ___(5) In Java a while loop can be changed to a for loop and vice versa. ___(6) Java statement !( x / 3 = = 6 ) || y*3 = = -6 ; evaluates to false if x=19 and y= -2
- Write a while loop that verifies the user enters a positive value. The following code skeleton can be used: System.out.println(“Pease enter a positive value:”); int num = scan.nextInt(); while (// your code here) { System.out.println(“Wrong! You need to enter a positive value.”); //Your code here } System.out.println(“Correct! The number you entered is ”+num);Unlabeled Break: Create a Java program that uses a "while" loop to output the numbers from 1 to 10 to the console. Add an "if" statement inside the loop to check if the number being outputted is greater than 5. If it is, use a "break" statement to exit the loop. Labeled Break: Create a Java program that uses a labeled "for" loop to output the numbers from 1 to 5, followed by the letters A to C to the console. Add an "if" statement inside the loop to check if the number being outputted is greater than 3. If it is, use a labeled "break" statement to exit the loop completely.In a loop when a condition is false you come out of the loop. However, interesting things happen when the condition is true and you remain in the loop. What kinds of interesting things happen discuss with arguments. Course: Formal Methods in Software Engineering