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- Write a program in Java programming language that reads an array of strings! The program should write all the strings from array that end with letter 'a'.EQrite a java program to read from a file called "treeList.txt". The file includes tree height, and tree age for unknown number of trees. The file use a comma separated file format, as the sample below. The program should write old trees only into an output file called "oldTrees.txt". A tree is considered old if its height is above 120 and its age is greater than 5 years. Finally print number of old trees at the end of the output file and format the output file to be similar to the given sample. treeList.txt oldTrees.txt 15.000,5 Tree Height Age 130.500,7 1. 130.500 7 140.000,6 2. 140.000 150.800,3 100.200,8 Number of old trees = 2.Computer Science This is a codingbat problem. Please answer in Java and do not change the starter code. You have been asked to write the game of tic tac toe. In the first version of the game, we will only be comparing horizontally for a win. A win is determine by all of the elements in a row either being an X or an O. You need to return a String with the winner or TIE if there is no winner. ticTacToe(["X", "O", "O"], ["X", "O", "O"], ["X", "X", "X"]) → "X"ticTacToe(["X", "O", "X"], ["X", "X", "O"], ["O", "O", "O"]) → "O"ticTacToe(["X", "O", "X"], ["X", "X", "O"], ["O", "X", "O"]) → "TIE" public String ticTacToe(String[] top, String[] middle, String[] bottom) { }
- Fix an error and show it please?Dim ar() As String = {"vb", "java", "C++"} %3D MsgBox(ar(2).Length & ar(1).Insert(2, "2")) Error--out of bound 3ja2va 2ja2va nonepublic static String pancakeScramble(String text) This nifty little problem is taken from the excellent Wolfram Challenges problem site where you can also see examples of what the result should be for various arguments. Given a text string, construct a new string by reversing its first two characters, then reversing the first three characters of that, and so on, until the last round where you reverse your entire current string.This problem is an exercise in Java string manipulation. For some mysterious reason, the Java String type does not come with a reverse method. The canonical way to reverse a Java string str is to first convert it to mutable StringBuilder, reverse its contents, and convert the result back to an immutable string, that is,str = new StringBuilder(str).reverse().toString(); Here's the tester it must pass: @Test public void testPancakeScramble() throws IOException {// Explicit test casesassertEquals("", P2J3.pancakeScramble(""));assertEquals("alu",…
- TAKE A LIST OF STRING FROM THE USER AND COUNT THE NUMBER OF UNIQUE ELEMENTS WITHOUT USING THE FOR, WHILE, Do-WHILE LOOPS. PREFERRED PROGRAMMING LANGUAGE: JAVA/C++Fix an error for me please?Write a program in Java programming language that reads an array of strings!The program should write all the strings from array that have at least one letter 'a'.
- %matplotlib inline import math import numpy as np from matplotlib import pyplot as plt import math def demo(x): return math.exp(-x**2/2.0) x = np.linspace(-3,3) y = [demo(xx) for xx in x] plt.plot(x,y) plt.axhline(0.5, color='red') plt.axvline(2.355/2,color='red',linestyle='dashed') plt.axvline(-2.355/2,color='red',linestyle='dashed') plt.grid() plt.annotate( '', xy=(-2.355/2, 0.4), xycoords='data', xytext=(2.355/2, 0.4), textcoords='data', arrowprops={'arrowstyle': '<->'}) plt.text(0,0.3,'FWHM',horizontalalignment ='center') 5.1 import math def f(x, gamma=3.1): mu = 2.345 return gamma/((x-mu)**2+gamma**2) x = np.linspace(-10,10,200) y = [f(xx) for xx in x] plt.plot(x,y) 5.2 print(f(1.0, gamma=0.2)) # you may find this usefuldef q5(sentence): Assumes sentence is a string. Returns a list of all the words in sentence, where a word is a token separated by white space, (you can use sentence.split()), and then for each word, make it lowercase and remove any character that is not alpha-numeric (a-z or 8-9). For example, I q5("The Plague" (French: "La Peste"), 1947, by Albert CamUs.') should return ['the', 'plague', 'french', 'la', 'peste', '1947', 'by', 'albert', 'camus'] q5('Red@Dragon....ca is great!') should return ['reddragonca', 'is', 'great'] pass%matplotlib inline import math import numpy as np from matplotlib import pyplot as plt def f(x): return math.sqrt(-x/(x+1)) def g(x): return math.tan(math.sqrt(2*(x + 1))) xs = np.linspace(-0.999,-0.1, 100) fx = [f(x) for x in xs] gx = [g(x) for x in xs] plt.plot(xs,fx) plt.plot(xs,gx) plt.grid