op = rand.nextInt(2) == 0 ? '+' : '-'; I want to add two more operators to this, but can't get it to work. Is it possible to add * and / to it?
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- Do not use regular expressions in your solution for this exercise. Write a program that checks to see if an input password is valid or not. In this exercise, a valid password has the following characteristics: It contains at least eight characters. It contains at most 12 characters. It contains only alphabetic characters, digits and the underscore (‘_’) character. It does not start with a digit. It has a mix of upper-case and lower-case characters. Your class must contain the following method: public static String checkPassword(String input) This method receives a possible password as input and returns only the String“OK” if the password is valid. If the password is not valid then you can return the reason(s) for that as the return value. This is not a part of the requirements, however, and you don’t need to do that. You can simply return null for an invalid password.Consider the following code. What will be printed out by the code?Ancay youyay eakspay igpay atinlay? (Can you speak pig latin?) If you can’t, here are the rules: If a word begins with a consonant, take all of the letters before the first vowel and move them to the end of the word, then add ay to the end of the word. Examples: pig → igpay, there → erethay. If a word begins with a vowel (a, e, i, o, u, or y), simply add yay to the end of the word. For this problem, y is always a vowel. Examples: and → andyay, ordinary → ordinaryyay. Although there are many variants of Pig Latin (such as Kedelkloppersprook in Germany), for this problem we will always use the rules described above. A friend of yours was frustrated with everyone writing in Pig Latin and has asked you to write a program to translate to Pig Latin for him. Ouldway youyay ebay osay indkay otay oday ityay? (Would you be so kind to do it?) Inputs consist of lines of text that you will individually translate from a text file given by the user. If the file cannot be opened for some reason,…
- For this discussion, we are going to be working with operators. Below is the code for the Operators class, which contains a main() method and a divisible() method. Study the code below, paying special attention to the four if statements. First, explain using complete sentences how each if statement evaluates (true or false), as well as what takes place in each if statement's test (comparisons, function calls, increments/decrements, etc.). Then, provide what the program will output. public class Operators { public static void main(String[] args) { int a = 5, b = 10, c = 11; System.out.println("This program works with operators."); if (a < 10 ^ b == 10) System.out.println("Java "); if (divisible(b, a) | divisible(c, a)) System.out.println("Programming "); if (a + b - (++c) == c - (b--) + 1) System.out.println("CITC ");…write legibly.Part 2 - OddOrEven ClassIn bluej. Write a program that prompts the user to enter an integer. The program should display “The input is odd" to the screen if the input is odd and displays “The input is even" to the screen if the input is even. Hint: Consider using the mod (%) operator.
- I am having trouble with this: Implement the convertString method based on its specification. Here are some things that can help: the Character class has some utility methods to determine if a character is uppercase, lowercase, or a digit (numeral) the String class has a method to get the character at a specific position (called the index). Find that method and use it. make use of the convert methods you already have!convertString Specification: /** * Converts the letters and numerals in the given string * to their circled counterparts. All other characters * are unchanged. * * @precondition text != null * @postcondition none * * @param text the text to convert * @return a modified version of text, with all letters and numerals * circled. */My code: public class CircleStrings { /** * Converts the letters and numerals in the given string * to their circled counterparts. All other characters * are unchanged. * *…In C++, you've been thinking about some cascading if/switch structures (aside from those bad dreams, I mean). You wonder if maybe you could make them more re-usable by changing them into loops looking through an array. Let's give it a shot: Given the if structure: if (score >= 90) { grade = 'A'; } else if (score >= 80) { grade = 'B'; } else if (score >= 70) { grade = 'C'; } else if (score >= 60) { grade = 'D'; } else { grade = 'F'; } You see that there are numbers being translated into letters. You envision a set of parallel arrays: cutoffs grades +----+ +---+ | 90 | | A | +----+ +---+ | 80 | | B | +----+ +---+ | 70 | | C | +----+ +---+ | 60 | | D | +----+ +---+ | 0 | | F | +----+ +---+ MAX_cutoff = 5 Now you write a simple loop: i = 0; while (i < MAX_cutoff && score < cutoffs[i]) { i++; } grade…In C++, you've been thinking about some cascading if/switch structures (aside from those bad dreams, I mean). You wonder if maybe you could make them more re-usable by changing them into loops looking through an array. Let's give it a shot: Given the if structure: if (score >= 90) { grade = 'A'; } else if (score >= 80) { grade = 'B'; } else if (score >= 70) { grade = 'C'; } else if (score >= 60) { grade = 'D'; } else { grade = 'F'; } You see that there are numbers being translated into letters. You envision a set of parallel arrays: cutoffs grades +----+ +---+ | 90 | | A | +----+ +---+ | 80 | | B | +----+ +---+ | 70 | | C | +----+ +---+ | 60 | | D | +----+ +---+ | 0 | | F | +----+ +---+ MAX_cutoff = 5 Now you write a simple loop: i = 0; while (i < MAX_cutoff && score < cutoffs[i]) { i++; } grade…