c++ vs java

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C++ is a member of the C programming language family. Like Python and Java, C++ is a fast, efficient, object-oriented language with a wide variety of use cases.

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Both Java and C++ have been in production for years. They both have similar syntax, and they both power some of the biggest enterprise platforms on the market. As a matter of fact, most C++ programmers will tell you that converting to a Java project is easy for them since style and syntax are very similar.



Conceptually and functionally, an array is a collection of variables that are accessed through a common name. Individual variables, called elements, within the array are selected by an index or a subscript. Arrays have a size, which is determined when they are created. Valid index values range from 0 to the size of the array - 1. All of the variables in the array must be the same data type (e.g., int or double). The following illustration demonstrates how arrays are created in Java and C++, and provides an abstract representation or mental model of an array.



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The Tiobe Index this month has both languages plunging to depths they've never reached before. "Java and C++ are at an all-time low in the Tiobe index since its start in the year 2001. This doesn't necessarily mean that Java and C++ are on their way out. There is still a huge demand for these programming languages," Tiobe says. Based on a formula that analyzes searches on languages on a number of sites, Java's rating in the September index was 14.14 percent; C++ had a rating of 4.67 percent. Overall, Java ranked second in popularity, while C++ came in fourth.

Since performance optimizing is a very complex issue, it is very difficult to quantify the performance difference between C++ and Java in general terms, and most benchmarks are unreliable and biased. Given the very different natures of the languages, definitive qualitative differences are also difficult to draw. In a nutshell, there are inherent inefficiencies and hard limits on optimizing in Java, given that it heavily relies on flexible high-level abstractions, however, the use of a powerful JIT compiler (as in modern JVM implementations) can mitigate some issues. In any case, if the inefficiencies of Java are too great, compiled C or C++ code can be called from Java via the JNI.