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As you all are well aware that Java is a vast world. There are a lot of provisions that you can play within Java. It is one of the most popular languages in the programming world. Simply the most favorite language for the developers due to a lot of salient features that it offers. Java is a very eye-catching language as it is easy to understand and learn. Here, in this tutorial, I am going to discuss one of the most amazing features of Java, security!
Java is an extremely safe language due to a variety of features described below. Have a look!
There are some more technical features elaborated below!
Java virtual machine plays a fundamental role to verify the byte-code. The task of JVM is to check that the program is not making any unsafe operations. There are cases when a program jumps to wrong locations that can hold malicious data. The JVM guarantees that such kind of unsafe operations do not exist. The JVM helps to diminish the possibilities of the developers who suffer from memory safety flaws.
The Java class library has several API that relates to security. This API is involved in cryptographic algorithms secure communication and authentication protocols.
There is no concept of pointers in Java language. The only disadvantage of pointers is that it can be used to refer another object for doing some unauthorized read and write operation. This puts the feature of security in Java in jeopardy. Hence, there are no pointers!
Java has an automatic garbage collection system. It has its own memory management mechanism. Allowed time users forget to free their memory when the utilization of some objects is done. But in the case of Java, the memory need not be vacated. JVM does your work.
Java.security.SouceCode class is helpful in Java. In the process of taking a code from some other network it becomes important to maintain a record of it. The class mentioned above, maintains the source information and keeps a digital signature which guarantees cryptographic security.
In exception handling, during runtime Java can catch the undesired result through exception handling and report the programmer. The code will not run until the programmer rectifies it. This feature adds more security to Java.
There are many class loaders present in JVM. A different name is given to each class which is loaded. The classloader maintains namespaces for specific classes. The aim here is that the untrusted classes shall not behave like trusted ones.
I hope now you have the answer to the above-mentioned question, Why Java is secure! With this I am concluding this tutorial. Keep reading, keep exploring.
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