Using java-Write a method that checks if two strings are palindromes. Two strings are palindromes if they contain the same characters but in strict reverse order. For example, “abcd” and “dcba” are palindromes. For the purposes of this method, if either input string is null, the method should return false. If both input strings are empty, the method should return true. The signature of the method should be as follows. public static boolean arePalindromes(String s1, String s2)

Design a program with an algorithm that will take a string from the user and then decide if each character in that string is unique. For example, if you ask the user to enter a string and that user enters the world ‘hello’, the result of the algorithm implementedshould return ‘false’ or ‘not unique’. If the user enters a string such as the word ‘phone’ the program will return ‘true’ or ‘unique’ since every character in the word phone is unique and is not repeated. An example of this program follows: Output should show as :  enter a string rizma This string has all the unique characters  would u like to continue?(y for yes n for no) y Enter a string waali This string is not unique     Your code should work for all strings and essentially all characters, as many examples will be tested.

Write a program that converts date formats from American Format: “February 4, 2021” to International Format, such as “2021-February-4”. Hint: you may use several string methods, including: str.indexOf(c) and str.substring(p, q). Note: java programming, must detect comma

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…

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The loop below is intended to collect all characters that occur more than once in a given string. When you try it out with a string such as “Mississippi”, you will note that that letters that occur three or more times are collected more than once. Modify the loop so that each repeated letter is collected exactly once. For example, when s is “Mississippi”, result should be “si” and not “sissii” Only allowed to edit code in the /* Your code goes here */ portion. Thanks for the help!

Program63.javaWrite a program that estimates the cost of carpet for one or more rooms with rectangular floors. Begin by prompting for the price of carpet per square yard and the number of rooms needing this carpet. Use a loop to prompt for the floor dimensions of each room in feet. In this loop, call a value-returning method with the dimensions and carpet price as arguments. The method should return the carpet cost for each room to main, where it will be printed and accumulated. After all rooms have been processed, the program should display the total cost of the job.Sample Output (image below) Program64.javaWrite a program that demonstrates method overloading by defining and calling methods that return the area of a triangle, a rectangle, or a square.

write a program that inserts parentheses, a space, and a dash into a string of 10 user-entered numbers to format it as a phone number. for example 5555555555 becomes (555) 555-5555. If the user does not enter exactly 10 digits, display an error message. continue to accept user input until the user enters 999 using string builder.