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- Write Java code and declare eight variables using java primitive data types. After that, assign values below to a suitable data type. Then, display all the values. 78, 32767, 167352167, 4807372223036854775, 3.6, 12.2232, J, falseNeed help in writing a program consisting between 300-500 lines of code. Program is a java calculator. Use only procedural constructs of the Java programming language. You may use all the following: - the Main class, since every Java program needs to be presented as a class, - Scanner class with all its methods for input and output, - Array and String classes with all their methods since most procedural languages provide them among their fundamental constructs Must do conversions: - binary to decimal and vice versa - hexadecimal to decimal and vice versa - binary to hexadecimal and vice versa Please use intellij idea or eclipsejava please, Complete main() to read dates from input, one date per line. Each date's format must be as follows: March 1, 1990. Any date not following that format is incorrect and should be ignored. Use the substring() method to parse the string and extract the date. The input ends with -1 on a line alone. Output each correct date as: 3/1/1990. Ex: If the input is: March 1, 1990 April 2 1995 7/15/20 December 13, 2003 -1 then the output is: 3/1/1990 12/13/2003
- John Here Need correct java code for the following questionProgram72.java See Section 7.13 and watch the Command Line Arguments (2:08) video (image of the video below). Then, write a program that takes two double command line arguments representing the sides of a rectangle. The program should then call a void function that reports the area of the rectangle accurate to three decimal places.6. In Java, you have the opportunity to either use a predefined function/method or write a user-defined function/method. In this discussion, provide at least three criteria that would be used to develop an appropriate method of your choice and the rationale behind the selection of these criteria.
- Consider the following declarations. In each case, write the English name of the type of x.Example: double *x;Answer: pointer-to-double (a) int *x[];(b) int (*x)[];(c) double **x;(d) unsigned long int (*x[])[n];Please explain the questions below. //8. Experiment with the below code. When would you use this data type? // In Java "or" is represented by || and "and" is represented as && //boolean x = 0; //boolean x = true; //x = !x; //x = x || false; //System.out.println(x); //9. Explain what's going on here. //char x = 'A'; //char x = 65; //char x = 'A'; x++; //char x = 12; //System.out.println("x = " + x);2) Write a java program to check which of your two friends is older. Ask for each of their date of birth. month, day, year. All in integer data types. Then print out the month, day and year of the older.
- i. Explain the following datatypes in your own words without copying it from anywhere. a. int b. float. c. double. d. string. e. Bool. ii. Write a program in C++ with the following datatypes. Use the 3 different variables with the same data type. Explain the codes step by step. a. int b. float. c. double. d. string. e. bool.4.33 LAB: Draw right-justified triangle (JAVA) Write a program in java to draw a right-justified triangle given the height as input. The first row has one asterisk (*) and increases by one for each row. Each asterisk is followed by a blank space and each row ends with a newline. Code starts here: import java.util.Scanner; public class LabProgram { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); /* Type your code here. */ }}Please help me solving each of these with java ...a. Defines and initializes a floating-point number that represents a circle radius.b. Defines a floating-point constant that represents PI.c. Computes the perimeter of the circle (2 * radius * PI).d. Prints the circle radius and perimeter to the console as follows:Circle with radius …. has perimeter ……2. Write a Java program that:- Declares and initializes two double variables (x with the value 2.5 and y with the value 3.2).- Print the values of the two variables as follows: x = … , y = …- Swap the values of x and y.- Print the value of the two variables after swapping as in the previous format: x = …, y = …3. Write a Java program that declares and initializes two integers (assign values of your choice to the two numbers), then performs the following:a. Find which of the two numbers is greater than the other in order to iterate over them in the following steps.b. Print all numbers between these two integers, including them, in their…