javaxxx

Java Selenium building xxx face Browser1.http://phantomjs.org/Download Windows version Phantomjs2. exe file will be found in the bin directory after decompression3. Test the code:Copy CodePackage SE;Import Org.openqa.selenium.WebDriver;Import Org.openqa.selenium.firefox.FirefoxDriver;Import Org.openqa.selenium.phantomjs.PhantomJSDriver;public class Test {public static void main(String[] args) { // TODO Auto-generated method stub// System.setProperty("webdriver.gecko.driver", "C:\\Program F

Compile android source code 3 --- install JDK 6 on ubuntuFor Android 2.3 and later versions, JDK 6, that is, JDK 1.6, must be used instead of copying files to/urs/lib/jvm. Cd download Sudo su Sudo cp jdk-6u45-linux-x64.bin/usr/lib/jvm2. jdk-6u45-linux-x64.bin File Installation # Chmod 777 jdk-6u45-linux-x64.bin grants the current user permission to execute#. Jdk-6u45-linux-x64.bin.bin3. Change the environment variable 4. Configure the default JDK version Sudo update-alternatives -- install/

, please save the program as a Xxx.java file, and note that you may need to modify the file suffix name.Then use the Javacxxx.java command under the DOS window, and you'll find a xxx.class text in the directory.Thing With the javaxxx command, your Java program starts running. Q2.2 I did what you said, but what happened? "' Javac ' is not an internal or external command, nor is it operationalOfprogram or batch file. ”。A: You're having a path problem. T

: -xms512m -xmx512m -xx:permsize=96m -xx:maxpermsize=96m -xmn168m -xx:+disableexplicitgc In addition, there is no GC policy, mainly think that Eclipse is a client program, the default client single-threaded GC policy should be more appropriate, there is time to try again later.The Java Virtual machine allocates 64M of memory by default, and if your application is larger and exceeds 64M of memory

-xx:permsize=96m -xx:maxpermsize=96m -xmn168m -xx:+disableexplicitgc In addition, there is no GC policy, mainly think that Eclipse is a client program, the default client single-threaded GC policy should be more appropriate, there is time to try again later.The Java Virtual machine allocates 64M of memory by default, and if your application is larger and exceeds 64M of memory, the Java Virtual machine will throw OutOfMemoryE

shows that the system access to the database is realized through a javabean. So I copied the JavaBean source code into a text editor like Notepad, and added the main method to test whether the class was working properly. After compiling the class file, use Javaxxx to execute, from the output, there is no problem. But where exactly is the problem? So I copied this code into an Eclipse project, and after compiling it, the error of the report was the sa

Java heap to grow to 256MB:-vmargs-xmx256mThe corresponding settings in Eclipse are : Windows- a preferences ->java-> installed JRE, in the default VM Increase in arguments :-xmx256mCause: TheJava virtual machine allocates 64M of memory by default, and if your application is larger and exceeds 64M of memory, theJava virtual machine will throw OutOfMemoryError, and stop running. No matter what application (Web app,application , etc.), just modify the run Java command on your machine and add i