包含関係の階層については、「The Java Tutorial」の「Swing Components and the Containment Hierarchy」を参照してください。 JComponentクラスは次の機能を提供します。 Swingアーキテクチャを使用する、標準コンポーネントおよびカスタム・コンポーネント両方の基底クラス。 プログラマが指定、また...
This document summarizes features and enhancements in Java SE 8 and in JDK 8, Oracle's implementation of Java SE 8
Subclasses of Component and Container, other than the ones defined in this package like Button or Scrollbar, are lightweight. All of the Swing components are lightweights. This method will always return false if this component is not displayable because it is impossible to determine the weight...
the Java Virtual Machine (JVM), and other components to run applets and applications written in the Java programming language. Note that the JRE includes components not required
(1) java基类new Class("xxx")需要修改为Class.valueOf("xxx") new Long("xx"),new Integer("xxx"),new Byte("xx"),new Short("") 这些都要修改为对应的valueOf("xxx")。 jdk这么做,主要是出于性能考虑,尤其针对Integer。 (2) Class.newInstance() ...
Files used by the development tools. Includes tools.jar, which contains non-core classes for support of the tools and utilities in the JDK. Also includes dt.jar, the DesignTime archive of BeanInfo files that tell interactive development environments (IDE's) how to display the Java components an...
腾讯KonaJDK是OpenJDK的发行版,并且针对大数据,机器学习和云计算等场景进行了独特的优化,在高性能及安全性方面多有建树。腾讯KonaJDK团队拥有多位OpenJDK Reviewer,Committer和Author,在国内JDK团队中首屈一指。而OpenJDK开源社区活跃且成熟,它的协作模式也是开源项目中的典范,无论对于初识的爱好者,还是长期的贡献者都...
Description:In JDK 5.0 and JDK 6,javacerroneously allowed access to private members of type-variables. This is wrong, as the JLS, Java SE 7 Edition, section 4.4, states that the members of a type-variable are the members of an intersection types whose components are the type-variable bound...
The OpenJDK HotSpot runtime system is a complex piece of software that employs several techniques to optimize the execution of Java programs on the fly. The system is composed of two different compilers, one interpreter and several different Garbage Collectors, among several other components. These...
tgz \ --directory "$JAVA_HOME" \ --strip-components 1 \ --no-same-owner \ ; \ rm openjdk.tgz*; \ \ rm -rf "$JAVA_HOME/jre/lib/security/cacerts"; \ # see "update-ca-trust" script which creates/maintains this cacerts bundle ln -sT /etc/pki/ca-trust/extracted/java/cacerts "...