In Java Write a program using recursion to display all valid (i.e. properly open and closed) combinations of n-pairs of parentheses.

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A: The correct JAVA code is given below with code and output screenshot Happy to help you ?

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Q: GIT> = 0|1|2|3 |4|5 |6|7|8|9|A |B|C Instead of writing 3*2, in this language you write *32 (which…

A: import java.util.Stack;public class PolishNotation {    boolean flag=true;        public float…

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Q: Do not use static variables to implement recursive methods. USING JAVA: // P6…

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Q: For function decToBinary, write the missing parts of the recursion case. This function should return…

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A: Python is used to answer this question.

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Q: The word ladder game was invented by Lewis Carroll in 1877. The idea is to begin  with a start word…

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Q: Write a recursive function that returns the sum of the digits of an integer. int sumOfDigits(int x);

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A: I have provided solution in step2.

Q: Complete the following program Multiply.java. This program uses recursion to multiply two numbers…

A: Sample Output Screenshot:

Computational Systems

The computation systems can be defined as the systems that are capable of solving a problem that includes calculations either mathematical or logical, and are able to produce the result as an output. For example, a simple calculator that is given a set of numbers and operators as input and produces the result as an output can be defined as a computational system. The above example is a simple illustration only, the computational systems range from simple devices to complex devices such as the systems that control the SpaceX companies, Starlink satellites which are being quite recently seen in the skies at many places globally.