编程的话,可以用Runtime.exec来执行set classpath命令,这样可以改变classpath 如果在CMD窗口内更改的classpath,那么在当前窗口内一直有效,直到你关闭当前窗口!对于其余的cmd窗口没有任何影响。 在系统属性里设计的classpath,则是针对每个cmd窗口都有效的,除非你改变它! --- Windows里面的环境变量长度确实是受限制的,...
javac -classpath classpath1;classpath3... 其中classpath1、classpath 2是实际要指定的路径。也可以在命令符模式下执行以下的命令,直接设置目前的环境变量,包括Classpath变量(这个设置在下次重新打开命令符模式时就不再有效): set CLASSPATH=%CLASSPATH%;classpath1;classpath3... 总而言之,设置Classpath的目的...
你可以使用 SET PATH 命令查看输出,输出结果: C:\Users\Administrator\Desktop> set PATH PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC;.RB;.RBW;.PY;.PYW 扩展命令 在SET 命令中添加了两个新命令行开关: rem /A 指定 expression 为数字表达式 SET /A expression rem promptStri...
3. To set the classpath for a single JAR file, use the following command: `java -cp path/to/your.jar YourMainClass`. Replace “path/to/your.jar” with the actual path to your JAR file, and “YourMainClass” with the name of the main class in your program. 4. To set the class...
javaTask.setClasspath(this.classpath); } javaTask.execute(); } 开发者ID:KualiCo,项目名称:ojb,代码行数:19,代码来源:TorqueRepositoryGeneratorTask.java 示例3: execute ▲点赞 3▼ importorg.apache.tools.ant.taskdefs.Java;//导入方法依赖的package包/类voidexecute(finalJava java){this.setOption(Conf...
:$CLASSPATH:$JAVA_HOME/lib 通过source命令,使/etc/profile.d/custom.sh文件生效。 代码语言:javascript 复制 [root@centos ~]# source /etc/profile.d/custom.sh 提示 对于CentOS6版本的系统,可以直接在/etc/profile文件中设置Java环境变量。对于CentOS7系统,建议新建/etc/profile.d/custom.sh文件进行Java环境...
//For CMD users, requires to be done whenever we start cmd, temporary SET PATH= //For Using Javac without setting up jdk path each time //Windows users requires admin access //Press start type "environment variables" //Click on Environment variables box in bottom of the System properties ...
conf.setClassLoader(confloader); exit_code = ToolRunner.run(conf, shell, argv.toArray(newString[argv.size()])); exit_code = postCmd(exit_code);if(0> exit_code) { StringBuilder msg =newStringBuilder();for(String s : argv) msg.append(s +" "); ...
打开CMD,使用java-version 查看是否已安装JDK已存在在环境变量的Path中查找安装的JDK。JDK8或14 1,下载,需要或注册个Oracle账号https://www.oracle.com/cn/java/technologies/javase/javase-jdk8-downloads.html2,安装:安装方式1:JDKJRE: 免安装方式2: 说明:同时 ...
in the client data set or by using an SMPCPATH DD statement or DDDEF entry, a default classpath value of"/usr/lpp/smp/classes/"is used. If a classpath value is specified, it must be a valid directory. A valid directory is from 1 to 255 characters in length, and must include only...