java8工具箱

1. java awt;java applet;java swing分别是什么他们之间有什么联系和区别

Applet 是嵌入网页的小程序！
awt和swing里的都是GUI图形所需的类
awt和SWING没什么区别
唯一的区别就是awt没有swing强大（比如：awt里的按钮不能添加图片，而swing里的按钮可以添加） awt是SUN的失败品，所以后来才弄了个swing
祝你成功！

2. jdk是什么

JDK是Java语言的软件开发工具包，主要用于移动设备、嵌入式设备上的java应用程序。JDK是整个java开发的核心，它包含了JAVA的运行环境（JVM+Java系统类库）和JAVA工具。

自从Java推出以来，JDK已经成为使用最广泛的Java SDK。由于JDK的一部分特性采用商业许可证，而非开源。

因此，2006年Sun微系统宣布将发布基于GPL的开源JDK，使JDK成为自由软件。在去掉了少量闭源特性之后，Sun微系统最终促成了GPL的OpenJDK的发布。

组件

1、 javac – 编译器，将源程序转成字节码

2、 jar – 打包工具，将相关的类文件打包成一个文件

3、 javadoc – 文档生成器，从源码注释中提取文档

4、 jdb – debugger，查错工具

5、 java – 运行编译后的java程序（.class后缀的）

6、 appletviewer：小程序浏览器，一种执行HTML文件上的Java小程序的Java浏览器。

7、 Javah：产生可以调用Java过程的C过程，或建立能被Java程序调用的C过程的头文件。

8、 Javap：Java反汇编器，显示编译类文件中的可访问功能和数据，同时显示字节代码含义。

9、 Jconsole: Java进行系统调试和监控的工具。

一、系统需求

无论Linux、Windows或者Mac OS系统，JDK均有X86与X64甚至安腾架构的发行版本。且均为多语言发行，即根据系统语言的不同自动显示不同语言的信息。

二、其他 JDK

除了本文中讨论的最广泛使用的 JDK 之外，还有其他 JDK 通常可用于各种平台，其中一些从 Sun JDK 源代码开始，而另一些则没有。都遵循基本的 Java 规范，但通常在明确未指定的领域有所不同，例如垃圾收集、编译策略和优化技术。他们包括：

1、 Azul SystemsZing，适用于 Linux 的低延迟 JDK；

2、 适用于 Linux、Windows、Mac OS X、嵌入式和云的基于Azul Systems/OpenJDK的 Zulu；

3、 OpenJDK/IcedTea;

4、 AicasJamaicaVM;

5、 IBM J9JDK，适用于 AIX、Linux、Windows、MVS、OS/400、Pocket PC、z/OS；

以上内容参考网络-jdk

3. Java SE Development Kit 8u5 求 Java SE开发工具包8u5

到oracle的官网下载，需要先注册一下。

4. Java 8 update 112怎么卸载不了

可以重启一下你的电脑
然后安装电脑管家在电脑上
通过工具箱的软件管理，自动卸载该

5. 我是win8用户，请问安装java后怎么卸载

安装的的是什么Java？java jre？
看看控制面板里边有没有java

6. java 8 update 31有用吗可以卸载吗

java
7
update
7是对java的升级补丁，不用升级，但也不要卸载，可能会把电脑上的java环境卸载了

7. java se开发工具包8u131演示和示例怎么用

演示就是查看demo例子
Test结尾的就是

8. matlab6.5+gaot工具箱和matlab7.0自带工具箱的效果一样吗

matlab7.0自带的工具箱版本未必都是7.0，我的这台电脑装的也是.5，看看它的版本吧。
-------------------------------------------------------------------------------------
MATLAB Version 6.5.0.180913a (R13)
MATLAB License Number: 0
Operating System: Microsoft Windows 98 Version 4.10 (Build 2222: A )
Java VM Version: Java 1.3.1_01 with Sun Microsystems Inc. Java HotSpot(TM) Client VM
-------------------------------------------------------------------------------------
MATLAB Version 6.5 (R13)
Simulink Version 5.0 (R13)
Aerospace Blockset Version 1.0.1 (R13)
CDMA Reference Blockset Version 1.1 (R13)
Communications Blockset Version 2.5 (R13)
Communications Toolbox Version 2.1 (R13)
Control System Toolbox Version 5.2 (R13)
Curve Fitting Toolbox Version 1.1 (R13)
DSP Blockset Version 5.0 (R13)
Data Acquisition Toolbox Version 2.2 (R13)
Database Toolbox Version 2.2.1 (R13)
Datafeed Toolbox Version 1.3.1 (R13)
Dials & Gauges Blockset Version 1.1.2 (R13)
Embedded Target for Motorola MPC555 Version 1.0.1 (R13)
Embedded Target for Texas Instrumen... Version 1.0 (R13)
Excel Link Version 2.0 (R13)
Filter Design Toolbox Version 2.2 (R13)
Financial Derivatives Toolbox Version 2.0 (R13)
Financial Time Series Toolbox Version 2.0 (R13)
Financial Toolbox Version 2.2.1 (R13)
Fixed-Point Blockset Version 4.0 (R13)
Fuzzy Logic Toolbox Version 2.1.2 (R13)
GARCH Toolbox Version 1.0.2 (R13)
Image Processing Toolbox Version 3.2 (R13)
Instrument Control Toolbox Version 1.2 (R13)
LMI Control Toolbox Version 1.0.8 (R13)
MATLAB COM Builder Version 1.0 (R13)
MATLAB Compiler Version 3.0 (R13)
MATLAB Excel Builder Version 1.1 (R13)
MATLAB Link for Code Composer Studi... Version 1.0 (R13)
MATLAB Report Generator Version 1.3 (R13)
MATLAB Runtime Server Development Kit Version 6.1.1 (R13)
Mapping Toolbox Version 1.3 (R13)
Model Predictive Control Toolbox Version 1.0.7 (R13)
Model-Based Calibration Toolbox Version 1.1 (R13)
Mu-Analysis and Synthesis Toolbox Version 3.0.7 (R13)
Neural Network Toolbox Version 4.0.2 (R13)
Nonlinear Control Design Blockset Version 1.1.6 (R13)
Optimization Toolbox Version 2.2 (R13)
Partial Differential Equation Toolbox Version 1.0.4 (R13)
Real-Time Windows Target Version 2.2 (R13)
Real-Time Workshop Version 5.0 (R13)
Real-Time Workshop Embedded Coder Version 3.0 (R13)
Requirements Management Interface Version 1.0.4 (R13)
Robust Control Toolbox Version 2.0.9 (R13)
SB2SL (converts SystemBuild to Simu... Version 2.5 (R13)
Signal Processing Toolbox Version 6.0 (R13)
SimMechanics Version 1.1 (R13)
SimPowerSystems Version 2.3 (R13)
Simulink Performance Tools Version 1.2 (R13)
Simulink Report Generator Version 1.3 (R13)
Spline Toolbox Version 3.1.1 (R13)
Stateflow Version 5.0 (R13)
Stateflow Coder Version 5.0 (R13)
Statistics Toolbox Version 4.0 (R13)
Symbolic Math Toolbox Version 2.1.3 (R13)
System Identification Toolbox Version 5.0.2 (R13)
Virtual Reality Toolbox Version 3.0 (R13)
Wavelet Toolbox Version 2.2 (R13)
xPC Target Version 2.0 (R13)
xPC Target Embedded Option Version 2.0 (R13)

所以，不要迷信新版本，够用就行。
以下是2006b版本的。
>> ver
-------------------------------------------------------------------------------------
MATLAB Version 7.3.0.267 (R2006b)
MATLAB License Number: 32684
Operating System: Microsoft Windows XP Version 5.1 (Build 2600: Service Pack 2)
Java VM Version: Java 1.5.0 with Sun Microsystems Inc. Java HotSpot(TM) Client VM mixed mode
-------------------------------------------------------------------------------------
MATLAB Version 7.3 (R2006b)
Simulink Version 6.5 (R2006b)
Aerospace Blockset Version 2.2 (R2006b)
Aerospace Toolbox Version 1.0 (R2006b)
Bioinformatics Toolbox Version 2.4 (R2006b)
Communications Blockset Version 3.4 (R2006b)
Communications Toolbox Version 3.4 (R2006b)
Control System Toolbox Version 7.1 (R2006b)
Curve Fitting Toolbox Version 1.1.6 (R2006b)
Data Acquisition Toolbox Version 2.9 (R2006b)
Database Toolbox Version 3.2 (R2006b)
Datafeed Toolbox Version 1.9 (R2006b)
Distributed Computing Toolbox Version 3.0 (R2006b)
Embedded Target for Infineon C166 Microcontrollers Version 1.3 (R2006b)
Embedded Target for Motorola HC12 Version 1.1.5 (R2006b)
Embedded Target for Motorola MPC555 Version 2.0.5 (R2006b)
Embedded Target for TI C2000 DSP(tm) Version 2.1 (R2006b)
Embedded Target for TI C6000 DSP(tm) Version 3.1 (R2006b)
Excel Link Version 2.4 (R2006b)
Extended Symbolic Math Toolbox Version 3.1.5 (R2006b)
Filter Design HDL Coder Version 1.5 (R2006b)
Filter Design Toolbox Version 4.0 (R2006b)
Financial Derivatives Toolbox Version 4.1 (R2006b)
Financial Toolbox Version 3.1 (R2006b)
Fixed-Income Toolbox Version 1.2 (R2006b)
Fixed-Point Toolbox Version 1.5 (R2006b)
Fuzzy Logic Toolbox Version 2.2.4 (R2006b)
GARCH Toolbox Version 2.3 (R2006b)
Gauges Blockset Version 2.0.4 (R2006b)
Genetic Algorithm and Direct Search Toolbox Version 2.0.2 (R2006b)
Image Acquisition Toolbox Version 2.0 (R2006b)
Image Processing Toolbox Version 5.3 (R2006b)
Instrument Control Toolbox Version 2.4.1 (R2006b)
Link for Code Composer Studio Version 2.1 (R2006b)
Link for ModelSim Version 2.1 (R2006b)
Link for TASKING Version 1.0.1 (R2006b)
MATLAB Builder for .NET Version 2.1 (R2006b)
MATLAB Builder for Excel Version 1.2.7 (R2006b)
MATLAB Builder for Java Version 1.0 (R2006b)
MATLAB Compiler Version 4.5 (R2006b)
MATLAB Distributed Computing Engine Version 3.0 (R2006b)
MATLAB Report Generator Version 3.1 (R2006b)
Mapping Toolbox Version 2.4 (R2006b)
Model Predictive Control Toolbox Version 2.2.3 (R2006b)
Model-Based Calibration Toolbox Version 3.1 (R2006b)
Neural Network Toolbox Version 5.0.1 (R2006b)
OPC Toolbox Version 2.0.3 (R2006b)
Optimization Toolbox Version 3.1 (R2006b)
Partial Differential Equation Toolbox Version 1.0.9 (R2006b)
RF Blockset Version 1.3.1 (R2006b)
RF Toolbox Version 2.0 (R2006b)
Real-Time Windows Target Version 2.6.2 (R2006b)
Real-Time Workshop Version 6.5 (R2006b)
Real-Time Workshop Embedded Coder Version 4.5 (R2006b)
Robust Control Toolbox Version 3.1.1 (R2006b)
Signal Processing Blockset Version 6.4 (R2006b)
Signal Processing Toolbox Version 6.6 (R2006b)
SimBiology Version 2.0.1 (R2006b)
SimDriveline Version 1.2.1 (R2006b)
SimEvents Version 1.2 (R2006b)
SimHydraulics Version 1.1 (R2006b)
SimMechanics Version 2.5 (R2006b)
SimPowerSystems Version 4.3 (R2006b)
Simulink Accelerator Version 6.5 (R2006b)
Simulink Control Design Version 2.0.1 (R2006b)
Simulink Fixed Point Version 5.3 (R2006b)
Simulink HDL Coder Version 1.0 (R2006b)
Simulink Parameter Estimation Version 1.1.4 (R2006b)
Simulink Report Generator Version 3.1 (R2006b)
Simulink Response Optimization Version 3.1 (R2006b)
Simulink Verification and Validation Version 2.0 (R2006b)
Spline Toolbox Version 3.3.1 (R2006b)
Stateflow Version 6.5 (R2006b)
Stateflow Coder Version 6.5 (R2006b)
Statistics Toolbox Version 5.3 (R2006b)
Symbolic Math Toolbox Version 3.1.5 (R2006b)
System Identification Toolbox Version 6.2 (R2006b)
SystemTest Version 1.0.1 (R2006b)
Video and Image Processing Blockset Version 2.2 (R2006b)
Virtual Reality Toolbox Version 4.4 (R2006b)
Wavelet Toolbox Version 3.1 (R2006b)
xPC Target Version 3.1 (R2006b)
xPC Target Embedded Option Version 3.1 (R2006b)

Trademarks
------------------
MATLAB, Simulink, Stateflow, Handle Graphics, Real-Time Workshop, and xPC
TargetBox are registered trademarks of The MathWorks, Inc. Other proct or
brand names are trademarks or registered trademarks of their respective holders.

可以看出，有些是升级的，有些还是以前版本的。

9. java 8 update31 怎么卸载

这个是MSI的安装来的，不应该使用Notepad++关联，，，，，，，32位的JAVA，可以在64位的电脑上使用的。

实在不行、还是要卸载，删除目录、清理注册表。。。。。。。。