範例二

class Mytestjava (Mytestjava.java)

import java.io.*; import java.awt.*; import javax.swing.*; import java.util.StringTokenizer; import java.nio.CharBuffer; import java.util.Arrays; import java.lang.Integer;; public class Mytestjava2 { static String[] array; static String output = ""; // find value in array intValues public static void printArrays(int[] intValues) { System.out.print( "doubleValues: " ); // for ( int count = 0; count < doubleValues.length; count++ ) // System.out.print( doubleValues[ count ] + " " ); System.out.print( "\nintValues: " ); output+= "\nintValues: "; for ( int count = 0; count < intValues.length; count++ ) { System.out.print( intValues[ count ] + " " ); output+= intValues[ count ] +" " ; } /* System.out.print( "\nfilledInt: " ); for ( int count = 0; count < filledInt.length; count++ ) System.out.print( filledInt[ count ] + " " ); System.out.print( "\nintValuesCopy: " ); for ( int count = 0; count < intValuesCopy.length; count++ ) System.out.print( intValuesCopy[ count ] + " " ); */ System.out.println(); } public static int[]searchForInt(String[] inputarray, int max) { int [] temp=new int[max]; int kmax=0; for (int i = 0; i < max; i++) { try { //System.out.println("inputarray("+i+")"+ inputarray[i]); temp[i]=Integer.parseInt(inputarray[i]); //System.out.println(""+temp[i]); kmax=kmax+1; } catch (Exception e) { //System.out.println(""+inputarray[i]); // XXX: handle exception } } int [] ioutputarray=new int[kmax]; for (int k = 0; k < kmax; k++) { ioutputarray[k]=temp[k]; } return ioutputarray; } public static void main(String[] args) { File position; File text; String InFileName,OutFileName; int num; String inputstr; try{ InFileName = args[0]; StringTokenizer tokens = new StringTokenizer( InFileName, ".t"); position = new File(InFileName); OutFileName = tokens.nextToken() + ".w" + tokens.nextToken(); System.out.print("Input File Name:" + InFileName + "\n" ); System.out.print("Output to the File :" + OutFileName+ "\n" ); text = new File(OutFileName); } catch(Exception e){ System.out.print("Error:"+e); System.exit(1); position = new File(""); text = new File(""); } array = new String[20]; try{ BufferedReader input = new BufferedReader(new FileReader( position ) ); int i=0; inputstr= input.readLine(); while (inputstr != null) { array[i]= inputstr; i=i+1; inputstr= input.readLine(); } input.close(); int max=i-1; int[] Intmatrix= searchForInt(array, max); for (int j = 0; j < Intmatrix.length; j++) { //output+=array[i]+"\n" ; System.out.println(""+Intmatrix[j]); } printArrays(Intmatrix); } catch(IOException IOException){ } try{ BufferedWriter output1 = new BufferedWriter(new FileWriter( text) ); output1.write(output); output1.flush(); } catch(IOException IOException){ } } }

輸入檔案 930201.s01 內容：

1 2 3 4 5 6 8.4 9.3 0.2 7.9 3.4

執行結果：

D:\test2\mytest1\src>java Mytestjava2 930201.s01 Input File Name:930201.s01 Output to the File :930201.ws01 1 2 3 4 5 6

輸出檔案 930201.ws01 內容：

intValues: 1 2 3 4 5 6