How do I read a sequence of values in a file into a arraylist in a method? It's in java progarmming.

Write a simple java delcaration for an array of double values name a. Do not allocate space for the elements of the array.

Write the Java method averageOfDoubles that is passed an array of double values, and returns the average of the array values.You can assume the array length is a positive integer.

JAVA you guys returned the question and said that it is a writing assignment but it is not. It is a java question, multiple-choice no coding. Please help me with this.

I need to write a Java ArrayList program called Search.java that counts the names of people that were interviewed from a standard input stream. The program reads people's names from the standard input stream and from time to time prints a sorted portion of the list of names. All the names in the input are given in the order in which they were found and interviewed. You can imagine a unique timestamp associated with each interview. The names are not necessarily unique (many of the people have the same name). Interspersed in the standard input stream are queries that begin with the question mark character. Queries ask for an alphabetical list of names to be printed to the standard output stream. The list depends only on the names up to that point in the input stream and does include any people's names that appear in the input stream after the query. The list does not contain all the names of the previous interviews, but only a selection of them. A query provides the names of two people,…

Given that an ArrayList of Strings named friendList has already been created and names have already been inserted, write the statement necessary to change the name "Tyler", stored at index 8, to "Bud".     This is needed in Java

java Create a static method that: is called repeatAll returns ArrayList of Booleans takes in a single parameter - an ArrayList of Booleans This method should modify its ArrayList parameter by repeating its ArrayList values. For example, if the parameter is   (true, false, false) The modified ArrayList should be   (true, false, false, true, false, false)    public static void main(String[] args) {    Scanner in = new Scanner(System.in);    int size = in.nextInt();    ArrayList<Boolean> list = new ArrayList<>();    for(int i=0; i < size; i++) {      list.add(in.nextBoolean());    }     System.out.println(repeatAll(list));   }  }

4. Now examine the ArrayList methods in the above table, a) Which method retrieves elements from the ArrayList? b) Which method replaces the value of an element that already exists in the ArrayList? c) Which two methods initializes the value of an element? d) How do the two methods in (c) differ? Which method(s) would be appropriate in the above Java program (after we convert it to work with ArrayLists)?

Java ArrayLists can only be filled with reference type data, so you cannot fill them with primitive type data. How can you work around this with integers? (How can you have an ArrayList filled with integers?)

use java to create a card game with the implements listed for the program. If you are able to do the first couple of steps that would be helpful and for step one use an array list with the following code. The code below should create 52 cards. String[] suits = {"Hearts", "Clubs", "Spades", "Diamonds"}; String[] numbers = {"A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"};          for(String oneSuit : suits){    for(String num : numbers){                       System.out.println(oneSuit + " " + num);                     } }