Write a Java program that use the String methods indexOf and substring to find the first word in a string. We define word to be a string of characters that does not include whitespace. For example, the first word of the string " Hello, my good friend!" is the string "Hello," and the second word is the string "my". Your program should prompt the user to enter a sentence from the keyboard and then display the first word. A possible dialogue with the user might be: Enter a sentence: Hello, my good friend! The first word in your sentence is: Hello,

basic java please Write a method starTheString that accepts a string of any size/length and a number. It should then return a new string that is two copies of the string with a set of stars between them equal to the number. For example, the call of starTheString("Hello", 5) o would return "*****Hello*****" 5 stars - Hello - 5 Stars starTheString ("Goodbye", 3) o would return "***Goodbye***" 3 stars – Goodbye - 3 Stars

Write a program that reads a list of integers from the keyboard and creates thefollowing information.a. Finds and prints the sum and the average of the integersb. Finds and prints the largest and the smallest integerc. Prints a Boolean (true or false) if some of them are less than 20d. Prints a Boolean (true or false) if all of them are between 10 and 90The input data consist of a list of integers with a sentinel. The program mustprompt the user to enter the integers, one by one, and enter the sentinel whenthe end of the list has been reached. The prompt should look like the following: Enter the numbers with <return>(99999 to stop):The output should be formatted as shown below: The number of integers is: xxxThe sum of the integers is: xxxxThe average of the integers is: xxx.xxThe smallest integer is: xxxThe largest integer is: xxxAt least one number was < 20: <true or false>All numbers were ( 10 <= n >= 90): <true or false>

Write a java class method named addQuotes that takes one parameter of type String. The method should return a string that's indentical to it's argument, but with a double quote character added at the beginning and end of the string.

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

Write a Java Program to take a string from the user and Your task is to find the length of longest palindrome string that can be made from that string.

Create a method in JAVA that returns a string when it receives three ints

Write a program in Java to count the total number of vowels and consonants in a String. The string can contain all the alphanumeric and other special characters as well. However, only the lowercase English alphabets are allowed in the String.

Computer Programming Java Write a method named FirstHalf that receives a String parameter named word and then returns the first half of the string. You are guaranteed as a precondition that word has an even length greater than 1.

Write a program that removes all non-alphabetic characters from the given input. Ex: If the input is: -Hello, 1 world$! the output is: Helloworld The program must define and call the following method that takes a string as a parameter and returns the string without any non- alphabetic characters. public static String removeNonAlpha (String userString)

In JAVA language. Given a string jv = "JAVA", write a program such that the string to be printed in output should be "AVAJJAVA".

Write the code in java and please dont plagarise or copy from other sources write it on your own and read the question carefully and do what in the question says thank you.