Write Java code to print the value of the double variable totalReceipts if the int variable numPeopleAtEvent is greater than 0. Make sure that, if something is printed after that, it appears on a new line.
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- Write a Java program correctly that generates a report of proof of vaccination against COVID-19 for the peoplewho received their dose of vaccination. Write a program which:1. Display a welcome message.2. Then prompts the user to enter the following:• First name, with first letter uppercase, which is then stores in a variable of type String.• Last name, with first letter uppercase which is then stores in a variable of type String.• Day of birth, set as a number between 1 and 31, which is then stores in a variable of typeint.• Month of birth, set as a number between 1 and 12, which is then stores in a variable of typeint.• Year of birth, set as a number between 1920 and 2006, which is then stores in a variable oftype int.• Day of vaccination, set as a number between 1 and 31, which is then stores in a variable oftype int.• Month of vaccination. set as a number between 1 and 12, which is then stores in a variableof type int.• Year of vaccination, set as a number between 2020 and 2021,…Hello, can someone pelase help me complete the following: In JAVA create a cross that takes 2 parameters (width & height) (width must always be equal to height) and prints a cross. Please look at the example printed below:This is JAVA Programming
- In java: ( no stringbuild or chart.append) the program must produce a neatly labeled bar chart depicting the relative values to each other. Note that there is no interactive input and no use of command line arguments. The program at this stage uses values programmed directly into it. The program output must include the original values as well as the bars. The example below shows the relative number of performances of some Broadway musicals (in picture) You choose the width of the chart. In the example above, it's 60, but it can be different. The largest value in your set should use the entire width, the rest of the bars will be proportionately shorter. Since you're assigning the values in the program, you know the maximum and no special logic is required to find it You must compute and display the "scale" of the chart (i.e. how many units one bar symbol represents) Each bar is labeled with the entity and value You may choose any symbol for your bars 3. In…In Java Write a program that checks the properness of a given variable name. Morespecifically, your program should specify whether a user-entered variable nameis (1) illegal, (2) legal but uses poor style, or (3) good. There are differentopinions as to what constitutes a good style for a variable name. For thisprogram, check for good style using these rules:· Only use letters and digits.· Use a lowercase letter for the first character.You do not need to check for an uppercase letter for the first letter in the secondand third words, ...etc.Your program should repeatedly prompt the user for variable names until the userenters "q" or "Q." the program terminates when the user enters the "q" or "Q." Sample session:This program checks the properness of a proposed Java variable name.Enter a variable name (q or Q to quit): streetAddress2Good!Enter a variable name (q or Q to quit): street address2Illegal.Enter a variable name (q or Q to quit): StreetAddress2Legal, but uses poor style.Enter a…Please Answer it in Java only. Dinner, a kind of noodle soup with rice. Mr. Ping makes the best noodle soup and his son Po is eagerly awaiting user reviews on his father's blog. Users can vote on (+) or -- and +1 or -1 can be added to the number of points respectively. Note that if a user votes multiple times, only his or her latest vote is calculated from the total value. Po opens a blog to see the first 0 points. In order to see updated points without updating the page, they must continue to vote. After each click of Po (+) or (-), he can see the current total points, which takes Po's vote again. He wonders how many users without him would have voted. Judging by the sequence of clicks made by Po and the total number of points displayed immediately after each click, can you tell him the minimum number of users who are likely to vote at least once, without Po. Input 1 P 1 P 2 Output 1
- For Java Write code for an if-else block that checks separates integers into the following categories: An integer less than 0, An integer greater than 0 and less than or equal to 10, An integer greater than 10 that is even, and an integer greater than 10 that is odd. Have each category print out a different statement. What are some ways you can make your code more efficient when using if-else blocks?/** 2. Write the method named countChar() * You are given a String str, and a char ch. Return the number of times that ch appears inside str, but ignore case. * * * Oh, and you can't use the classification methods in the Character class. Use plain if statements, remembering that you can check if ch is lowercase by checking if it is between lowercase 'a' and lowercase 'z', inclusive. Likewise, check if between 'A' and 'Z' for capital. To convert lowercase to uppercase, subtract the difference between lowercase 'a' and uppercase 'A' ('a'-'A') from the lowercase character. Add this difference to convert from uppercase to lowercase. * * * * * * Examples: countChar("Abcdefg", 'a') returns 1 countChar("xxXx", 'x') returns 4 countChar("", 'q') returns 0 * * @param str the String to search through @param ch the char to count (not case sensitive) @return the count of ch in str * */ public int countChar(String str, char ch) { // Complete the countChar method here }Please Answer it in Java only. Dinner, a kind of noodle soup with rice. Mr. Ping makes the best noodle soup and his son Po is eagerly awaiting user reviews on his father's blog. Users can vote on (+) or -- and +1 or -1 can be added to the number of points respectively. Note that if a user votes multiple times, only his or her latest vote is calculated from the total value. Po opens a blog to see the first 0 points. In order to see updated points without updating the page, they must continue to vote. After each click of Po (+) or (-), he can see the current total points, which takes Po's vote again. He wonders how many users without him would have voted. Judging by the sequence of clicks made by Po and the total number of points displayed immediately after each click, can you tell him the minimum number of users who are likely to vote at least once, without Po. Input 1 P 1 P 2 Output 1
- Create a Java application which will take an infix algebraic expression as an input from user. It will check that whether it is a valid expression or not. Then It will be converted into postfix expression, and at the end it will be evaluated and print the result of the expression. For example:if input is: (3+5)*(7output: it is invalid.If input is: (3+5)*7 , displayPostfix form: 35+7*Answer: 56.Write a complete Java program that do the following: Declare String object and a variable to store your name and ID. DisplayYour Name and Student ID. Display Course Name, Code and CRN Replace your first name with your mother/father name. Display it in an uppercase letter. Note:Your program output should look as shown below. My Name: Ameera Asiri My student ID: 123456789 My Course Name: Computer Programming My Course Code: CS140 My Course CRN: 12345 AIYSHA ASIRI Note: Include the screenshot of the program output as a part of your answer.I need help with Java code. I'm not sure how to start...