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Java equals

boolean java.lang.Object.equals(Object obj)
Indicates whether some other
object is "equal to" this one.
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any non-null reference value x, x.equals(x) should return true.
It ......

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public class ArraySort {
     public static void main(String[] args) {
     int Arrays[]={50,45,2,678,90,40,};
     int i,j,temp,min;
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¡¡ ¡¡protected byte[] encrypt(byte[] obj) ...{
¡¡¡¡try ...{
¡¡¡¡MessageDigest md5 = MessageDigest.getInstance("MD5");
¡¡¡¡md5.update(obj);
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¡¡¡¡} catch (NoSuchAlgorithmException e) ...{
¡¡¡¡e.printStackTrace();
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