Write a static method named matchIndex that accepts as its parameter a Scanner for an input file. Your method should compare the first line of the file (target line) to every other line in the file looking for places where the character at a given 0- based index from the two lines is the same. For example, in the strings "hello" and "belt", the characters at indexes 1 ('e') and 2 (I') match. Your code should be case-sensitive; for example, "J" does not match "j". For each pair of lines, your method should print output showing the character indexes that match, separated by spaces in the format shown below. If no characters match, print "none" instead as shown below. For example, suppose the input file contains the following text. (Line numbers and character indexes are shown around the input and matching characters are shown in bold, but these markings do not appear in the actual file.) 0123456789012345678901234567890123456789 1 This is the target line for comparison 2 Those achy down socks 3 Wheels on the school bus go round 4 The wipers go swish swish swish 5 His name is Robert Paulson 6 so long 'n thanks for all the fish 7 Humpty Dumpty sat on a wall 8 And then he also had a great fall 9 booyakasha 10 Bruno Ali G Borat When passed the above file, your method would produce the following output: target and 2: 0 1 3 target and 3: 1 19 27 29 target and 4: 0 1 5 target and 5: 11 17 18 target and 6: 7 13 target and 7: none target and 8: 9 10 11 target and 9: none target and 10: 11 14 Notice that lines are not generally the same length. You may assume that the file contains at least 1 line.

Thank you very much for explaining the absyract concept, it was very helpful and easier to understanc after you explained it. Today we are asked to modify the GridWriter class by adding additional collection style functionality, to throw an exception in case of an error. The GridWriter class should get two new methods: public int size()  should return the number of GridItems stored in the GridWriter public GridItem get(int index)  should return the stored GridItems by index. Consider the following code. The first line creates a GridWriter object.  Then two items are added to the GridWriter. The index of the items will be 0, and 1. Notice how the for loop uses the size and get methods to print out the areas of the two items GridWriter gw = new GridWriter(40, 50);           gw.add(new MyCircle(10, 10, 9)); gw.add(new MyRectangle(40, 0, 10, 10)); for (int i = 0; i < gw.size(); i++) {         System.out.println(gw.get(i).getArea()); }        Once you have these two methods working you…

Image one is the example output of text-based histogram . Image 2 is my file. You can creat a new file too(up to u)  as long as the output shows the times of appearances of the numbers. (Like the example showed in image 1, if number 20 appeared 1 times, print 1 star after it. I want to write: A method to print a text-based histogram takes one parameter, an array of integers no return value