write a program that reads a word and prints all substrings, sorted by length article
How do you generate a random floating-point number and ? It reads and computes the product of integer values, until either zero or a negative value is entered.The zero or negative value is ignored. In many games, you throw a pair of dice to get a value between 2 and 12. Opening datafile.txt . Write A C++ Program That Reads A Word And Prints All Substrings, Sorted By Length. Write a conditional statement with three branches that sets s to 1 if x is positive, to −1 if x is negative, and to 0 if x is zero. Jeong, 1 Edward Jeong Mr. Schimpf AP Computer Science A 3 January, 2018 1. Class Date contains ___ instance variables. How could you achieve the task of Self Check 12 with only two branches? Integer not found. Assuming that variable number has a value of 777, what output is generated by the code segment below? Both the character and the string are given as arguments. Which of the following statements would generate a compile-time error? Write nested loops that make the following pattern of brackets: How do you simulate a coin toss with the Math.random() method? Given class Counter below, how many instances of the Counter class are created in the code segment that follows? The inner call to Math.pow returns . The method is designed to compute the area of a circle with the radius given as argument. What is the value returned by the call computeResult(3.0)? Through the substring and charAt methods. Contribute your code (and comments) through Disqus. Next: Write a Python program to count the number of even and odd numbers from a series of numbers. 6 3 Time Complexity : O(n 2) where n is length of input string. How do you call the squares method to compute the first five squares and store the result in an array numbers? What is the purpose of the method? The nested loops should display: Select an expression to complete the code segment below. What is the value returned by the call computeResult(3, 6)? The code is intended to increment variable count if the String variable vehicle contains the value "sedan". Explain the difference between using a computer program and programming a computer. What symbol is at the top of the stack when the symbol f is processed? Opening datafile.txt . A program needs to keep track of passenger information for airline flights. Assuming that variable score has a value of 85, what output is generated by the code segment below? Describe a way in which a String object might store its characters. It copies the smallest value to the first array location and shifts other elements so no values are lost. « Previous Program Next Program » Sort String in Alphabetical Order in Python To sort string in alphabetical order, you have to ask from user to enter any string to sort the entered string in alphabetical order and print the sorted string as output as shown in the program given below. In the first case when comparing if (floor = 13) you should get the error "Type mismatch: cannot convert from int to boolean". 60: The outer loop is executed 10 times, and the inner loop 6 times. Consider the method below. Where is the HelloPrinter.java file stored on your computer? . What is the compile-time error in this program? The following algorithm yields the season (Spring, Summer, Fall, or Winter) for a given month and day. Assuming that int variable numberOfDependents has a value of 2, what is the value in variable exemption after execution of the code segment below? What is the return value of the method call Math.pow(Math.pow(2, 2), 2)? Assuming that variable score has a value of 79, what output is generated by the code segment below? Find the errors in the following if statements. Rewrite the following for loop into a while loop. Write a program that transforms numbers 1, 2, 3, ..., 12 into the corresponding month names January, February, March, ..., December. Consider the method below. Insert the missing statement in the code fragment below. Suppose the user enters −1 into the earthquake program. Is the method call "Hello, World".println() legal? Using the split() method the string is converted into a list of words. Write a program that reads a number and displays the square, cube, and fourth power. What is an infinite loop? Hint: Make a very long string "January February March ...", in which you add spaces such that each month name has the same length. . Insert the missing condition in the following code fragment. Which parts of a computer can store program code? Why does the loop body in Dice.java call Math.random() twice? For example, if the user provides the input Change NMAX to 5. What happens when you supply the same name for the input and output files to the Total program? The method should count and return the number of times a character appears in a string. For example, if the user provides the input "rum", the program prints import java.util.Scanner; A CD player can do one thing—play music CDs. The program is syntactically correct and does something, but it doesn't do what it is supposed to do. Compute (int) (Math.random() * 2), and use 0 for heads, 1 for tails, or the other way around. . Describe the building blocks of a simple program. It prints the number of array elements which are even. What is printed? A more accurate prompt would have been: "Enter values, a key other than a digit to quit." After how many years is the account depleted? Write a program that reads a word and prints the word in reverse. The program must store and print names of passengers in alphabetical order. a) There are two errors in this code. The loop should stop when the user enters something other than an integer. • The for loop is used when a value runs from a starting point to an ending point with a constant increment or decrement. Computers execute very basic instructions in rapid succession. Here, we first sort each word, use sorted word as key and then put original word in a map. Would the program continue to work if you replaced line 5 with this statement? Only write a new line when it is even. The incomplete methods are known as: In the program below, what variable can be legally displayed using the incomplete print statement? For example, suppose the user types. It's likely the programmer meant to do this: Write an algorithm to settle the following question: A bank account starts out with $10,000. Given the initial value of x as 2, the result is 4. For example, if the user provides the input "rum", the program prints. The central processing unit (CPU) performs program control and data processing. How can you modify the Total program so that it writes the values in two columns, like this: Add a variable count that is incremented whenever a number is read. . This article is contributed by Nishant_Singh(Pintu).If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to [email protected]. Pay close attention to spaces. Write a Python program that accepts a word from the user and reverse it. Print out the balances after the first three months. Classify program errors as compile-time and run-time errors. A program that reads the data on the CD and sends output to the speakers and the screen. Select the output produced by the program segment below, assuming that the file datafile.txt does exist and is opened successfully when the program executes. Select a pseudocode statement to complete the following algorithm, which computes the cost of a shipment. Constants are commonly written using capital letters to distinguish them visually from regular variables: You use the // delimiter for short comments. | The while loop would never be entered. Print whether water is liquid, solid, or gaseous at the given temperature at sea level. To count the number of characters in str that are not asterisks. Complete the code fragment below, which is designed to throw an exception when variable index is negative. Keep asking until the user provides a correct input: To compute the largest value in a sequence, keep a variable that stores the largest element that you have encountered, and update it when you find a larger one. The account has an initial balance of $1,000 and earns 5 percent interest per year. All values in the inner loop should be displayed on the same line. elect the output produced by the program segment below, assuming that the file datafile.txt does exist and is opened successfully when the program executes. Consider the following code snippet. Here are two sample runs. All uppercase letters come before the lowercase letters. It will try to report as many errors as it can find, so you can fix them all at once. System.out.println(colors.get(colors.size())); Insert the missing statement in the code fragment below. Use an engineering term to describe this aspect of the Math.ceil method. Select an appropriate expression to complete the setMonth method. How would you modify the HelloPrinter program to print the word "Hello" vertically? (birthYear <= 1900) || (birthYear >= 2010). For example OR is equivalent to "||" in Java while AND NOT could be equivalent to "!=". Write a Python program to count the number of even and odd numbers from a series of numbers. What output is generated by the statement below? A typical answer might be /home/dave/cs1/hello/HelloPrinter.java or c:\Users\Dave\Workspace\hello\HelloPrinter.java. Your program should read the initial balance and the annual interest rate. The last character? The switch statement can be applied only in narrow circumstances. . It returns the length of the longer string. PrintWriter outputFile = new PrintWriter("results.txt"); Assuming that outputFile is a valid PrintWriter object, which of the following statements would cause a compile-time error? Assuming that variables dollars and cost have been declared, which of the following assignment statements is INVALID? Previous: Write a Python program to construct the following pattern, using a nested for loop. If the user doesn't provide any numeric input, the first call to in.nextDouble() will fail. The following pseudocode is intended to count the number of digits in the number n: Write the for loop of the InvestmentTable.java program as a while loop. Why don't we initialize largest and i with zero, like this? How you stop an infinite loop on your computer depends on your operating system and your IDE. In secondary storage, typically a hard disk. throw new IllegalArgumentException("Negative index"); Select the output produced by the program segment below, assuming that the file datafile.txt does not exist. The printout is My lucky number is12. Stop when reading the same value twice in a row. Which of the following statements represents a logic error? cost = 25.0; /* initial cost of a product //. Read first name into variable called first. Assuming that variable base has a value of 5 and variable height has a value of 12, what output is generated by the code segment below? © 2003-2020 Chegg Inc. All rights reserved. Insert the missing condition in the following code fragment. What is the value returned by the call computeResult(3)? Write a program that prints the following grid to play tic-tac-toe. Pseudocode is an informal description of a sequence of steps for solving a problem. What output is generated by the program below? For which of the following applications would a storyboard be most useful? Java interprets the statement "39 + 3" as a string and thus prints out the literal characters 39 + 3. Write a program that prints the sum of the first ten positive integers, 1 + 2 + ... + 10. Java was originally designed for programming consumer devices, but it was first successfully used to write Internet applets. Their numeric values are 4, 3, 2, 1, and. Briefly summarize these recommendations. 1) The scanner should have been constructed as Scanner in = new Scanner(System.in); The given output is printed in a raw format up to the range of a double data type. When processing a sequence of values in a loop, you sometimes need to compare a value with the value that just preceded it. Question: Using PYTHON 3.0+ Write A Program That Reads A Word And Prints All Substrings, Sorted By Length. (Assume the windows and doors have a uniform size.). Hand-trace the following code, showing the value of n and the output. Insert the missing statement in the code fragment below. A well-designed computer program is easy to use without any special knowledge. How do you get the first character of a string? Which of the following is the correct way to create a PrintWriter object to write text to an output file results.txt? Using physical objects such as coins to represent array elements, determine the purpose of the method below. Which parts of a computer can store program code? A && B is the same as B && A for any Boolean conditions A and B. • Variable names are in lowercase with occasional uppercase characters in the middle. Assume the balanced expression checker algorithm processes the expression below. System.out.println("The sum of 5 and 6 is 10"); If the compiler finds an error, it will not simply stop and give up. The loop should stop when the sum exceeds 100. What are the values of the following expressions? Then explain what the code does for arbitrary values of a and n. Trace the following code. But that might be more con-fusing to the program user who would need now ponder which key to choose. When using a String object, you do not know how it stores its characters. File not found. On your computer, how can you terminate a program that executes an infinite loop? Write a program that prints a multiplication table, like this: In which sequence are the lines of the Cubes.java program in Section 5.2 executed, starting with the first line of main? This is true, the Boolean operation && is symmetric. Provide the pseudocode for the solution. How would you change the program to display all powers from to ? . . A video game program needs to keep track of weapons and other artifacts available to each of the game characters. Declare an array called words that can hold ten elements of type String. Write a do loop that reads integers and computes their sum. For example, in the Eclipse IDE there is a red "TERMINATE" button that will stop any Java program at any time. Develop an algorithm for computing that value. Complete the code fragment below by inserting the statement that makes the most appropriate use of the enhanced for loop. Review 1.01: Explain the difference between using a computer program and programming a computer. Find three run-time errors in the following program. Given the code segment below, which of the following statements would cause a run-time error? • A variable is a storage location with a name. Test your Python skills with w3resource's quiz, Python: Combining two iterable of tuples or pivot nested iterables. What output is generated by the program segment below? What is wrong with this simulated throw of a pair of dice? The tax was. numberOfDependents <= 3 || income > 50000. Consider the Date class below. No—the object "Hello, World" belongs to the String class, and the String class has no println method. Assuming that class Soccer is a subclass of Sport, and game is an instance of Soccer, which of the following is invalid? What does a computer user need to know about programming in order to play a video game? Which of the following code segments can be used to print the message Hello Goodbye on one output line? The last character? Insert the missing statement in the following code fragment, which is designed to initialize the array elements with the values 1, 2, 3, . Why is there a statement System.out.println(); in the outer loop but not in the inner loop? Use the import statement to use classes from packages. Write a program that prompts the user for a measurement in meters and then converts it to miles, feet, and inches. Given class Counter below, what output is generated by the code segment that follows? How do you remove the first character? Consider this method that prints a page number on the left or right side of a page: Consider the following method that computes compound interest for an account with an initial balance of $10,000 and an interest rate of 5 percent: Add parameter variables so you can pass the initial balance and interest rate to the method: The comment explains what the following loop does. What is wrong with the following loop for finding the position of the first space in a string? Typically program code is stored on a hard disk, CD/DVD disc, or in some other central location across a network. If you have a longer comment, enclose it between /. The code is intended to add 5 to variable shippingCost if the value of variable weight is at least 10. Write the following methods and provide a program to test them. Which can store user data? What is wrong with these statements for printing an array with separators? Write a program that prompts the user for two integers and then prints. The Math.ceil method in the Java standard library is described as follows: The method receives a single argument of type double and returns the smallest double value ≥ that is an integer. When throwing a pair of dice, the number 7 is six times as likely as the num-ber 2. You need to enclose Hello in quotation marks: What does the following set of statements print? When the expression to the left or the right of a + operator is a string, the other one is automatically forced to become a string as well, and both strings are concatenated. Write a program (using loops) that reads a word and prints all substrings, sorted by length. Reading data . What do the following nested loops display? uppose you wanted to add the total to an existing file instead of writing a new file. Insert the missing condition in the following code fragment. Given the declaration below, what is the value of table.length? rite a program that displays the dimensions of a letter-size (8.5 × 11 inches) sheet of paper in millimeters. In the second block, the conditional statements are mutually exclusive, so, s cannot be incremented more than once. How do you modify the program so that it shows the average, not the total, of the inputs? Insert the missing condition in the following code fragment. How do you test whether at least one of them is zero? What is the index of the element containing "Mary" after the following code segment executes? What output do these nested for loops generate? Explain the difference between an if/else if/else sequence and nested if statements. Assume no other methods are present. What value is returned by the method call Math.pow(1 + 2, 3) ? It would be a good idea to add a space after the is. For example, the call fill(scores, 10) should fill all elements of the array scores with the value 10. public static void fill(int[] values, int value). , 100. In the case of an if/else if/else sequence, one clause is guaranteed to be executed, while in the case of nested if statements the internal clause is only true if all the if statements are true. Printing a grid. In this program, we store the string to be sorted in my_str. User data is often more likely to be stored on a local hard disk, although it can also be stored on a network or even a CD/DVD for backup storage. The method is designed to compute the area of a circle with the radius given as argument. Shipping costs depend on the weight of the item being shipped. When implementing a program designed using the process known as stepwise refinement, it is common to write temporary methods that are incomplete but allow the testing of other methods. Assuming that names is a Queue of String objects, select an expression to complete the code segment below. // Inputs are width, length, height, number of windows, number of doors. Insert the missing condition in the following code fragment. What is the value of mystery after this sequence of statements? Assignment: Write a program that reads a word and prints all substrings, sorted by length. What is wrong with the following loop for reading a sequence of values? . We need to call it once for each die. Select an expression to complete the code segment below. Write a program that translates a letter grade into a number grade. The code is intended to validate an integer value entered by the user to represent the current month. Because we do not visit all elements in the string, a while loop is a better choice than a for loop: In the preceding example, we searched a string for a character that matches a condition. Insert the missing condition in the following code fragment. What is the last value printed? Assuming that variable dollars has a value of 50 and variable cost has a value of 100, which of the following conditions is false? Interest is compounded monthly. When comparing exact values the order of if/else if/else statements does not matter: Complete the following truth table by finding the truth values of the Boolean expressions for all combinations of the Boolean inputs p, q, and r. True or false? When finding the position of a match, we used a while loop, not a for loop. Why is a CD player less flexible than a computer? An online bank wants you to create a program that shows prospective customers how their deposits will grow. Try it out if you are not sure. Place that code into a separate method printLine, and use that method to simplify boxString. Java interprets the comma in the println method to mean that two strings are passed to println. Interest is compounded monthly at 6 percent per year (0.5 percent per month). Suppose we want to have the earthquake program check whether the user entered a negative number. Select the output generated by the code segment below. • Mixing integers and floating-point values in an arithmetic expression yields a floating-point value. What is the difficulty level of this exercise? A compile-time error is a violation of the programming language rules that is detected by the compiler. What is the advantage of using the type boolean rather than strings "false"/"true" or integers 0/1? Which of the following is NOT a valid number literal of type double? Your program should read twelve temperature values and print the month with the highest temperature. Contrast these search operators with the Boolean operators in Java. What is the purpose of the code segment below? The code is designed to print the Queue elements in reverse order. Write a program that prompts the user for a radius and then prints. Write a program that prints a greeting of your choice, perhaps in a language other than English. For the first character, pass a position of 0 to charAt. What is the purpose of the following method? Sadly, that is the same file as the input file. 1) There is an extraneous semicolon after main(). The split() method splits the string at whitespaces. What additional value should be used in order to achieve coverage of all decision points? The user would never be prompted for input. On the other hand, programming a computer requires special knowledge about what the computer can fundamentally do and how you would communicate with it through a programming language. Give an example of an if/else if/else sequence where the order of the tests does not matter. . The method returns the corresponding Scanner object. Write a for loop that prints all even numbers between 10 and 20 (inclusive). Users of the method can treat it as a black box. If the argument is negative, the method returns zero. What output is generated by the code segment below? Give an example of each. In the statement below, the value stored in variable temp is called _________________. In the first block, the conditions are evaluated sequentially, so s could be incremented twice. Find substrings of a string in Java . How do you find the position of the last space in a string? Terms Suppose variable average is to contain the average (including possible decimal values) of four integer variables: a, b, c, and d. Which of the following statements would perform the correct operation? Write a program that prints the balance of an account after the first, second, and third year. For example, if the user provides the input "rum", the program prints Trace the following code, assuming that both first and second begin with a value of 1. Output: 3 Time complexity: O(n 2) Auxiliary Space: O(n 2) Count All Palindrome Sub-Strings in a String | Set 2. "rum", the program prints, C program to print all permutations of a given string Below are the permutations of string ABC. Therefore, the outer call returns. Insert the missing expression in the code fragment below. How many values are printed? Complete the program in How To 4.1. Insert the missing condition in the following code fragment. In the last example of this section, we prompt the user "Enter values, Q to quit." Write a program to print all permutations of a given string Last Updated: 29-08-2019 A permutation, also called an “arrangement number” or “order,” is a rearrangement of the elements of an ordered list S into a one-to-one correspondence with S itself. The method should continue to prompt the user for a valid file name until one is entered. Select the output generated by the code segment below, assuming that data is a Scanner object used to read an input file with the following contents: Complete the code fragment below, which is designed to display the result of adding the numeric values in the data string. Write a program that prints the product of the first ten positive integers, 1 × 2 × ... × 10. As an ArrayList
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