Mistakes Every Beginners Java Programmers Makes

Well, coding skills basically depend on how much you can improve and rectify mistakes in your code. According to you, identify the most common mistakes which you do in the beginning while learning java programming. This post basically tells you what mistakes you commonly do while programming java.

Since from 1995 java has been involving in our lives and exceeded the expectations of people. Over the time, object-oriented programming language Java has spread everywhere and created its own special place in the world of programming.

This list has been made by the data scientist covering 250,000 beginner java developer all over the world. By using 37,000 compilations, they basically revealed the most common mistakes done by java developers.

List of Mistakes Every Beginners Java Programmers Makes

This list basically consists of mistakes which were actually a result of common misconception based on loose evidence. Here are top 10 Mistakes Every Beginners Java Programmers makes.

1. Unbalanced parentheses, curly braces, brackets, and quotation marks, or using these different symbols interchangeably, such as in: while (a == 0].
2. Invoking methods with wrong arguments or argument types, such as in:list.get("abc").
3. Control flow can reach end of non-void method without returning, such as in:
   <em>public int foo(int x)
{
if (x &lt; 0)
return 0;
x += 1;
}
</em>

   4. Confusing the assignment operator (=) with the comparison operator (==), such as in:if (a = b).

   5. Ignoring or discarding the return value of a method with a non-void return type, such as in: myObject.toString();.

   6. Use of == instead of .equals to compare strings.

   7. Trying to invoke a non-static method as if it was static, such as in:MyClass.toString();

   8. Class claims to implement an interface, but does not implement all the required methods, such as in: class Y implements ActionListener { }.

   9. Invoking the types of parameters when invoking a method, such as in:myObject.foo(int x, String s);.

   10. Incorrect semicolon in if statements or for and while loops, such as in: if (a==b); return 6;.

   The researchers also said that these errors are easy to spot and it can be easily found as comparatively other major bugs cannot be found and can’t be tracked at all.

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