Java code to generate unique random key

import java.util.Random;
public class RandomKeyGenerator {
    public static String generateRandomKey() {  
        String allChars = “abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890!@$%^*()_”;  
        Random random = new Random();  
        int length = random.nextInt(5);  
        length+=7;
        char[] chars = new char[length];  
        for (int i=0; i<length; i++) {  
            chars[i] = allChars.charAt(random.nextInt(allChars.length()));  
          }  
        return new String(chars);  
    }
}

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About rajkirpal

i am a software engineer. and i have decent knowledge about java technologies like ANDROID, Servlet, Jsp, Struts, Hibernet, Spring, J2ME, Java Script, Ajax, JQuery, CSS. Further i am Preparing Easy understandable materials/documents upon the same java technologies and developing project in core java , advanced java and j2me , ANDROID as per the requirements Also designing the web sites and logos Thank You.
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