1. Write a method called doubleListthat takes an ArrayList of strings as a parameter and replaces every string with two of that same string. For example, if the list stores the values ["how", "are", "you?"] before the method is called, it should store the values ["how", "how", "are", "are", "you?", "you?"] after the method finishes executing.In your program1, you also need to create a class namedProgram1.java, where you are going to construct some arralylists to test the doubleList within the static void main method. In the output, it will print out the original list and the new list after calling the doubleList method. 2.Write a method called filterRange that accepts an ArrayList of integers and two integer values min and max as parameters and removes all elements whose values are in the range min through max (inclusive). For example, if a variable calledlist stores the values [4, 7, 9, 2, 7, 7, 5, 3, 5, 1, 7, 8, 6, 7], the call of filterRange(list, 5, 7);should remove all values between 5 and 7, changing the list to store [4, 9, 2, 3, 1, 8]. If no elements in range min-max are found in the list, or if the list is initially empty, the list’s contents are unchangedIn your program2, you also need to create a class named

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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1. Write a method called doubleListthat takes an ArrayList of strings as a parameter and replaces every string with two of that same string. For example, if the list stores the values ["how", "are", "you?"] before the method is called, it should store the values ["how", "how", "are", "are", "you?", "you?"] after the method finishes executing.In your program1, you also need to create a class namedProgram1.java, where you are going to construct some arralylists to test the doubleList within the static void main method. In the output, it will print out the original list and the new list after calling the doubleList method. 2.Write a method called filterRange that accepts an ArrayList of integers and two integer values min and max as parameters and removes all elements whose values are in the range min through max (inclusive). For example, if a variable calledlist stores the values [4, 7, 9, 2, 7, 7, 5, 3, 5, 1, 7, 8, 6, 7], the call of filterRange(list, 5, 7);should remove all values between 5 and 7, changing the list to store [4, 9, 2, 3, 1, 8]. If no elements in range min-max are found in the list, or if the list is initially empty, the list’s contents are unchangedIn your program2, you also need to create a class named

Program2.java, where you are going to create some arralylists to test the filterRangewithin the static main method. In the output, it will print out the original list and the new listafter calling the filterRange method.

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