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weblogic installationMicrosoft Windows [Version 10.0.17763.1577](c) 2018 Microsoft Corporation. All rights reserved.C:\Windows\system32>cd C:\WebLogic12c\oracle_common\common\binC:\WebLogic12c\oracle_common\common\bin>set JAVA_HOME="C:\Java\jdk1.7.0_131"C:\WebLogic12c\oracle_common\common\bin>set path=%JAVA_HOME%\bin;%path%C:\WebLogic12c\oracle_common\common\bin>.\config.cmd\Java\jdk1.7.0_131 was unexpected at this time.C:\WebLogic12c\oracle_common\common\bin>java -versionjava version "1.7.0_131"Java(TM) SE Runtime Environment (build 1.7.0_131-b31)Java HotSpot(TM) Client VM (build 24.131-b31, mixed mode, sharing)C:\WebLogic12c\oracle_common\common\bin>.\config.cmdException in thread "main" java.lang.UnsupportedClassVersionError: com/oracle/cie/wizard/domain/WLSWizardConfiguration : Unsupported major.minor version 52.0at java.lang.ClassLoader.defineClass1(Native Method)at java.lang.ClassLoader.defineClass(ClassLoader.java:803)at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)at java.net.URLClassLoader.access$100(URLClassLoader.java:71)at java.net.URLClassLoader$1.run(URLClassLoader.java:361)at java.net.URLClassLoader$1.run(URLClassLoader.java:355)at java.security.AccessController.doPrivileged(Native Method)at java.net.URLClassLoader.findClass(URLClassLoader.java:354)at java.lang.ClassLoader.loadClass(ClassLoader.java:425)at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)at java.lang.ClassLoader.loadClass(ClassLoader.java:358)at java.lang.Class.forName0(Native Method)at java.lang.Class.forName(Class.java:278)at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:363)at java.util.ServiceLoader$1.next(ServiceLoader.java:445)at com.oracle.cie.wizard.WizardController.createWizardConfiguration(WizardController.java:100)at com.oracle.cie.wizard.WizardController.main(WizardController.java:67)C:\WebLogic12c\oracle_common\common\bin>java -versionjava version "1.7.0_131"Java(TM) SE Runtime Environment (build 1.7.0_131-b31)Java HotSpot(TM) Client VM (build 24.131-b31, mixed mode, sharing)C:\WebLogic12c\oracle_common\common\bin>cd /C:\>cd weblogicC:\weblogic>java -jar fmw_12.1.3.0.0_wls.jarLauncher log file is C:\Users\roberto.martinez\AppData\Local\Temp\OraInstall2020-11-19_11-19-21PM\launcher2020-11-19_11-19-21PM.log.Extracting files...............Starting Oracle Universal InstallerChecking if CPU speed is above 300 MHz. Actual 2304 PassedChecking monitor: must be configured to display at least 256 colors. Actual 4294967296 PassedChecking swap space: must be greater than 512 MB PassedChecking if this platform requires a 64-bit JVM. Actual 32 Passed (64-bit not required)Preparing to launch the Oracle Universal Installer from C:\Users\roberto.martinez\AppData\Local\Temp\OraInstall2020-11-19_11-19-21PMLog: C:\Users\roberto.martinez\AppData\Local\Temp\OraInstall2020-11-19_11-19-21PM\install2020-11-19_11-19-21PM.logYou can find the log of this install session at:C:\Users\roberto.martinez\AppData\Local\Temp\OraInstall2020-11-19_11-19-21PM\install2020-11-19_11-19-21PM.logLogs successfully copied to C:\Program Files\Oracle\Inventory\logs.C:\weblogic>java -versionjava version "1.7.0_131"Java(TM) SE Runtime Environment (build 1.7.0_131-b31)Java HotSpot(TM) Client VM (build 24.131-b31, mixed mode, sharing)C:\weblogic>

Add a check when the button is clicked to see if there is any text. If there isn't, pop up an alert box (or some other form of feedback) to tell the user to enter data, and don't do the button functionality.
Example:
<input id="myText" type="text" onkeyup="stoppedTyping()">
<input type="button" value="Click to begin!" id="start_button" onclick="verify()" disabled/>
<script type="text/javascript">
function stoppedTyping(){
if(this.value.length > 0) {
document.getElementById('start_button').disabled = false;
} else {
document.getElementById('start_button').disabled = true;
}
}
function verify(){
if myText is empty{
alert "Put some text in there!"
return
}
else{
do button functionality
}
}
</script>
- +1 This also works if the user uses the context menu to delete the textbox value. – pimvdb Aug 15 '11 at 15:54
Easiest way to do it :-
Simple Html and JavaScript : Run the snippet (Just 7 lines)
function success() {
if(document.getElementById("textsend").value==="") {
document.getElementById('button').disabled = true;
} else {
document.getElementById('button').disabled = false;
}
}<textarea class="input" id="textsend" onkeyup="success()" name="demo" placeholder="Enter your Message..."></textarea>
<button type="submit" id="button" disabled>Send</button>