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public class CIO {
    public void method (java.io.File f) {
    java.io.FileInputStream fis = null;
        try {
            fis = new java.io.FileInputStream (f);
            fis.read ();
            fis.close ();
        } catch (java.io.FileNotFoundException e1) {
            System.out.println("File not found");
        } catch (java.io.IOException e2) {
            System.out.println("I/O Exception");
        }
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    }
}
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public class CIOFixed {
    public void method (java.io.File f) {
    java.io.FileInputStream fis = null;
        try {
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public class TestWhile {

public static double factorial(int n) //Çó½×³Ëº¯Êý
{
if(n==0) return 1;
else return n* factorial(n-1);
}

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