java - How to read first line of ints in a text file, use those numbers, then go to the second line and repeat until the end of the file -
this main method. trying read first line of integers (5 4 3 7 8 4 3 1 3 ) text file. want run numbers through methods calling in main method. want go next line in text file (15 1 60 1 43 24 3), run these numbers through methods calling , on until reach end of text file. best way implement this? how code run through of integers in text file , run them through method.
public static void main(string[] args) { binarytree tree = new binarytree(); try { int num; scanner reader = new scanner(new file("numbers.txt")); while(reader.hasnextint()) { num = reader.nextint(); if(tree.contains(num)) { tree.remove(num); } else { tree.add(num); } } reader.close(); tree.preorder(root); system.out.println(); tree.inorder(root); system.out.println(); tree.postorder(root); system.out.println("\ntotal: " + tree.size(root)); system.out.println("height: " + tree.height(root)); system.out.println("max: " + tree.getmax(root)); system.out.println("min: " + tree.getmin(root)); } catch(ioexception e) { e.printstacktrace(); system.exit(1); } } this text file want use called numbers.txt
5 4 3 7 8 4 3 1 3
15 1 60 1 43 24 3
25 28 71 18 48 35 97
6 41 24 40 85 2 92 72 86 59 7 40
76 19 23 40 84 6 67 41 34 66 79 11 38 5 61 60 64 5
81 8 30 80 88 38 90 55 37 45 70 32 41 26
i try more this:
public static void main(string[] args) throws exception { scanner reader = new scanner(new file("numbers.txt")); while (reader.hasnextline()) { string[] temp = reader.nextline().split("\\s+"); // regex , whitespace used delimiter (int x = 0; x < temp.length; x++) { // iterate through each element in string array temp } // resume while loop. } } 