/** * (C) Copyright IBM Corp. 2010, 2015 * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *  */ package com.ibm.bi.dml.runtime.util; public abstract class PRNGenerator { long seed = -1; public abstract void setSeed(long sd); public PRNGenerator() { seed = -1; } public PRNGenerator(long sd) { seed = sd; } public abstract double nextDouble() ; }