2. Write a JAVA program to input a string and create a new string as shown in the sample output. Input: "Java" Output: "JJaJavJava"

Here is a classic “introduction to computer programming” problem: Write a program that converts temperature from Fahrenheit to Celsius and vice versa. The program will accept a number (temperature) and a temperature unit designation (i.e., character F or C) from the user, and then convert the temperature into the other unit system. The program will echo the input as part of the final conversion output. The temperature units should be printed in full (Fahrenheit or Celsius). Your program should use real numbers—not integers—for both input and output. Formula: T(F) = (T(C) * 9 / 5) + 32T(C) = (T(F) − 32 ) * 5 / 9 Sample Run: This program converts Temperatures from Fahrenheit to Celsius and vice versa. Please enter your temperature: 32 Please enter the units (F/C): F A temperature of 32 degrees Fahrenheit is equivalent to 0 degrees Celsius. Do you wish another conversion? (Y/N): Y Please enter your temperature: 100 Please enter the units (F/C): C A temperature of 100 degrees Celsius is…

Use Java Code- Given a string represent a 10 digit phone number, output the area code, prefix and line number using the format (800) 555-1212  Ex. If the input  8005551212 Output  (800) 555-1212

Write code to determine if the first character in an input string str is a lowercase character. If the first character is lowercase, output "issue", otherwise output "no problem". in java

17.Write a Java program that prompts the user to input an integer greater than 0 which represents the size/height of the triangle shape. The program should print the following triangle shape according to the user input by alternating 'f' and '+' characters. Invalid error message must be displayed if the size is less than 1. Example: if the size of the shape = 4, then the p program should output: ! !+! !+!+! 1+1+1+1

11. Write a JAVA program to read input a string from the keyboard and replace all uppercase alphabets in the string with an underscore. Sample Output: Input: AbcDeFG Output: _bc_e

Write a python program that does the following: 1. prompts the user to enter a word 2. using that word, first prints out the word where all characters are replaced by “_”’s (there will be an example to better illustrate this below). 3. the program will continue to print the word revealing one character at a time. i.e., The second line printed should print the first character followed by “_”’s representing the rest of the word. 4. The program should end after printing the entire word once.   example Enter a word: kangaroo ________ k_______ ka______ kan_____ kang____ kanga___ kangar__ kangaro_ kangaroo

2. For any 5 digit integer, for example 13092, write Java code to display each of the 5 digits individually and to print the total of the five digits

d)Write a Java program to print the string shown below using the string "Java" only. "JavaavaJ"