The navigator javaEnabled() method is used for returning a Boolean value that specifies whether Java is enabled in a browser or not. It returns true if Java is enabled in the browser else it returns false.
Syntax:
navigator.javaEnabled()
Note: This method has been deprecated and is no longer used.
Return Value: A Boolean, indicating whether the browser has Java enabled.It returns true if enabled, false if not.
Below program illustrates the Navigator javaEnabled() method :
Checking whether a browser has Java enabled or not.
<!DOCTYPE html>
<html>
<head>
<title>
Navigator javaEnabled() Method in HTML
</title>
<style>
h1 {
color: green;
}
h2 {
font-family: Impact;
}
body {
text-align: center;
}
</style>
</head>
<body>
<h1>GeeksforGeeks</h1>
<h2>Navigator javaEnabled() Method</h2>
<p>
For checking whether the browser has Java
enabled or not, double-click the "Check Java"
button:
</p>
<button ondblclick="check_java()">
Check Java
</button>
<p id="jav"></p>
<script>
function check_java() {
var j =
"Is Java Enabled : " + navigator.javaEnabled();
document.getElementById("jav").innerHTML = j;
}
</script>
</body>
</html>
Output:
Before clicking the button:

After clicking the button:

Supported Browsers: The browser supported by navigator javaEnabled() are listed below:
- Google Chrome
- Internet Explorer
- Firefox
- Opera
- Safari