FormulaEvaluator.java Requirements: Evaluate the following expression for any value of the variable x, and save the result in a variable of the type double. You must use the abs(), pow(), and sqrt() methods of the Math class to perform the calculation. You may use a single assignment statement with a somewhat large expression, or you may break the expression into multiple assignment statements. The latter may be easier to debug if you are not getting the correct result. (9x² + 7x² +5x+3)² (√8x² − 6x² + 4x² +1|20x|+1) Next, determine the number of digits to the left and to the right of the decimal point in the result. [Hint: You can convert the double variable into a String variable using the static method Double.toString(result). Then, on this String variable use the indexOf() method from the String class to find the position of the decimal point ("") and use the length() method to find the length. Knowing the location of the decimal point and the length of the String, you should be able to determine the number of digits on each side of the decimal point.] Finally, the result should printed using the class java.text.Decimal Format so that to the right of the decimal there are at most three digits and to the left of the decimal each group of three digits is separated by a comma in the traditional way. Also, there should also be at least one digit on each side of the decimal (e.g.. zero should be printed as 0.0 rather than 0.000).
FormulaEvaluator.java Requirements: Evaluate the following expression for any value of the variable x, and save the result in a variable of the type double. You must use the abs(), pow(), and sqrt() methods of the Math class to perform the calculation. You may use a single assignment statement with a somewhat large expression, or you may break the expression into multiple assignment statements. The latter may be easier to debug if you are not getting the correct result. (9x² + 7x² +5x+3)² (√8x² − 6x² + 4x² +1|20x|+1) Next, determine the number of digits to the left and to the right of the decimal point in the result. [Hint: You can convert the double variable into a String variable using the static method Double.toString(result). Then, on this String variable use the indexOf() method from the String class to find the position of the decimal point ("") and use the length() method to find the length. Knowing the location of the decimal point and the length of the String, you should be able to determine the number of digits on each side of the decimal point.] Finally, the result should printed using the class java.text.Decimal Format so that to the right of the decimal there are at most three digits and to the left of the decimal each group of three digits is separated by a comma in the traditional way. Also, there should also be at least one digit on each side of the decimal (e.g.. zero should be printed as 0.0 rather than 0.000).
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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