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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 external.org.apache.commons.lang3;

/**
 * 

An enum representing all the versions of the Java specification. * This is intended to mirror available values from the * java.specification.version System property.

* * @since 3.0 * @version $Id: $ */ public enum JavaVersion { /** * The Java version reported by Android. This is not an official Java version number. */ JAVA_0_9(1.5f, "0.9"), /** * Java 1.1. */ JAVA_1_1(1.1f, "1.1"), /** * Java 1.2. */ JAVA_1_2(1.2f, "1.2"), /** * Java 1.3. */ JAVA_1_3(1.3f, "1.3"), /** * Java 1.4. */ JAVA_1_4(1.4f, "1.4"), /** * Java 1.5. */ JAVA_1_5(1.5f, "1.5"), /** * Java 1.6. */ JAVA_1_6(1.6f, "1.6"), /** * Java 1.7. */ JAVA_1_7(1.7f, "1.7"), /** * Java 1.8. */ JAVA_1_8(1.8f, "1.8"); /** * The float value. */ private float value; /** * The standard name. */ private String name; /** * Constructor. * * @param value the float value * @param name the standard name, not null */ JavaVersion(final float value, final String name) { this.value = value; this.name = name; } //----------------------------------------------------------------------- /** *

Whether this version of Java is at least the version of Java passed in.

* *

For example:
* {@code myVersion.atLeast(JavaVersion.JAVA_1_4)}

* * @param requiredVersion the version to check against, not null * @return true if this version is equal to or greater than the specified version */ public boolean atLeast(JavaVersion requiredVersion) { return this.value >= requiredVersion.value; } /** * Transforms the given string with a Java version number to the * corresponding constant of this enumeration class. This method is used * internally. * * @param nom the Java version as string * @return the corresponding enumeration constant or null if the * version is unknown */ // helper for static importing static JavaVersion getJavaVersion(final String nom) { return get(nom); } /** * Transforms the given string with a Java version number to the * corresponding constant of this enumeration class. This method is used * internally. * * @param nom the Java version as string * @return the corresponding enumeration constant or null if the * version is unknown */ static JavaVersion get(final String nom) { if ("0.9".equals(nom)) { return JAVA_0_9; } else if ("1.1".equals(nom)) { return JAVA_1_1; } else if ("1.2".equals(nom)) { return JAVA_1_2; } else if ("1.3".equals(nom)) { return JAVA_1_3; } else if ("1.4".equals(nom)) { return JAVA_1_4; } else if ("1.5".equals(nom)) { return JAVA_1_5; } else if ("1.6".equals(nom)) { return JAVA_1_6; } else if ("1.7".equals(nom)) { return JAVA_1_7; } else if ("1.8".equals(nom)) { return JAVA_1_8; } else { return null; } } //----------------------------------------------------------------------- /** *

The string value is overridden to return the standard name.

* *

For example, "1.5".

* * @return the name, not null */ @Override public String toString() { return name; } }




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