c4ec887262
Reviewed-by: kvn, mseledtsov
71 lines
2.0 KiB
Java
71 lines
2.0 KiB
Java
/*
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* Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package vm.compiler.share;
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public class Random {
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private int current;
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public Random(int init) {
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this.current = init;
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}
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//big prime number
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private static long BASE = 1003001;
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public int nextInt() {
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current = (int) ((long) current * current % BASE - 1);
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return current;
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}
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public int nextInt(int n) {
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return nextInt() % n;
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}
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/**
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* for testing purposes
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* @param args
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*/
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public static void main(String[] args) {
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Random r = new Random(11);
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int[] a = new int[100];
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for(int i=0; i<1000; i++) {
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a[r.nextInt(100)]++;
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}
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for(int i=0; i<100; i++){
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System.out.println(times(a[i]));
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}
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}
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public static String times(int n) {
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StringBuilder sb = new StringBuilder();
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for(int i=0; i<n; i++) {
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sb.append("*");
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}
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return sb.toString();
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}
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}
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