39 lines
909 B
Java
39 lines
909 B
Java
package fr.xephi.authme.security;
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import java.util.Calendar;
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import java.util.Random;
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/**
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*
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* @author Xephi59
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*/
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public class RandomString {
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private static final char[] chars = new char[36];
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static {
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for (int idx = 0; idx < 10; ++idx)
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chars[idx] = (char) ('0' + idx);
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for (int idx = 10; idx < 36; ++idx)
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chars[idx] = (char) ('a' + idx - 10);
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}
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private final Random random = new Random();
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private final char[] buf;
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public RandomString(int length) {
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if (length < 1)
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throw new IllegalArgumentException("length < 1: " + length);
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buf = new char[length];
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random.setSeed(Calendar.getInstance().getTimeInMillis());
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}
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public String nextString() {
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for (int idx = 0; idx < buf.length; ++idx)
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buf[idx] = chars[random.nextInt(chars.length)];
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return new String(buf);
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}
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}
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