Write a java program that displays a square shape of the first letter of your name. Your program should only accepts a positive integer that represents the number of lines. Note: you should display in the output the first letter of your first name.
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- (Population projection) The U.S. Census Bureau projects population based on thefollowing assumptions:■■ One birth every 7 seconds■■ One death every 13 seconds■■ One new immigrant every 45 secondsWrite a program to display the population for each of the next five years. Assume thatthe current population is 312,032,486, and one year has 365 days. Hint: In Java, iftwo integers perform division, the result is an integer. The fractional part is truncated.For example, 5 / 4 is 1 (not 1.25) and 10 / 4 is 2 (not 2.5). To get an accurate resultwith the fractional part, one of the values involved in the division must be a numberwith a decimal point. For example, 5.0 / 4 is 1.25 and 10 / 4.0 is 2.5.Lab 7 Pre-Lab In Java Write an algorithm that gets student exam scores from the user. Each exam score will be an integer in the range 0 to 100. Input will end when the user enters -1 as the input value. After all scores have been read, display the number of students who took the exam, the minimum score, the maximum score, the average score, and the number of As where an A is a score in the range 90-100. Make sure your average a decimal point. Only count A’s, not other grades. Note that you do not need to do any error checking on the input for this problem. This should be done as a standard sentinel-controlled while loop.A palindromic prime is any prime number that is also a palindrome. For example, 131 is a palindromic prime, as are 313 and 757. Write a Java program (PalindromicPrime.java) that displays the first 100 palindromic prime numbers. Display 10 numbers per line with a spacing of 6; all numbers should be left-aligned.
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