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Use Scanner to read various types of data from a file
Java Code:import java.util.*; import java.io.*; public class ScanMixed { public static void main(String args[]) throws IOException { int i; double d; boolean b; String str; // Write output to a file. FileWriter fout = new FileWriter("test.txt"); fout.write("Testing Scanner 10 12.2 one true two false"); fout.close(); FileReader fin = new FileReader("Test.txt"); Scanner src = new Scanner(fin); // Read to end. while(src.hasNext()) { if(src.hasNextInt()) { i = src.nextInt(); System.out.println("int: " + i); } else if(src.hasNextDouble()) { d = src.nextDouble(); System.out.println("double: " + d); } else if(src.hasNextBoolean()) { b = src.nextBoolean(); System.out.println("boolean: " + b); } else { str = src.next(); System.out.println("String: " + str); } } fin.close(); } }"The sole cause of man’s unhappiness is that he does not know how to stay quietly in his room." - Blaise Pascal
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