回答編集履歴
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test
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@@ -99,3 +99,85 @@
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\# Java14をサポートしてないEclipse、とかいうオチだったりして。
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----
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----
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----
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同じバージョンをみつけたのでためしてみた。コンパイルできて実行できますけどね。
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```dos
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X:\tmp\hoge>type com\petitmonte\Hello.java
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package com.petitmonte;
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import javax.swing.JFrame;
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public class Hello {
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public static void main(String[] args) {
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System.getProperties().keySet()
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.stream().filter(it -> it.toString().startsWith("java."))
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.sorted()
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.forEach(key ->System.out.println(String.format("%s : %s", key, System.getProperty(key.toString()))));
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JFrame frame = new JFrame("Hello World!");
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frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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frame.setSize(300, 300);
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frame.setVisible(true);
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}
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}
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X:\tmp\hoge>java -version
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openjdk version "14.0.1" 2020-04-14
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OpenJDK Runtime Environment (build 14.0.1+7)
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OpenJDK 64-Bit Server VM (build 14.0.1+7, mixed mode, sharing)
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X:\tmp\hoge>javac -version
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javac 14.0.1
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X:\tmp\hoge>javac com\petitmonte\Hello.java
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X:\tmp\hoge>java com.petitmonte.Hello
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java.runtime.name : OpenJDK Runtime Environment
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java.runtime.version : 14.0.1+7
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```
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