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2. Assertion (software development) - Wikipedia

   en.wikipedia.org/wiki/Assertion_(software...

   In computer programming, specifically when using the imperative programming paradigm, an assertion is a predicate (a Boolean-valued function over the state space, usually expressed as a logical proposition using the variables of a program) connected to a point in the program, that always should evaluate to true at that point in code execution.

3. Java syntax - Wikipedia

   en.wikipedia.org/wiki/Java_syntax

   Unlike C++, Java has no global functions or variables, but has data members which are also regarded as global variables. All code belongs to classes and all values are objects . The only exception is the primitive data types , which are not considered to be objects for performance reasons (though can be automatically converted to objects and ...

4. Class invariant - Wikipedia

   en.wikipedia.org/wiki/Class_invariant

   Common programming languages like Python, [3] PHP, [4] JavaScript, [citation needed] C++ and Java support assertions by default, which can be used to define class invariants. A common pattern to implement invariants in classes is for the constructor of the class to throw an exception if the invariant is not satisfied.

5. List of Java bytecode instructions - Wikipedia

   en.wikipedia.org/wiki/List_of_Java_bytecode...

   push the constant 0.0 (a double) onto the stack dconst_1 0f 0000 1111 → 1.0 push the constant 1.0 (a double) onto the stack ddiv 6f 0110 1111 value1, value2 → result divide two doubles dload 18 0001 1000 1: index → value load a double value from a local variable #index: dload_0 26 0010 0110 → value load a double from local variable 0 ...

6. Uninitialized variable - Wikipedia

   en.wikipedia.org/wiki/Uninitialized_variable

   Java does not have uninitialized variables. Fields of classes and objects that do not have an explicit initializer and elements of arrays are automatically initialized with the default value for their type (false for boolean, 0 for all numerical types, null for all reference types). [ 4 ]

7. Primitive wrapper class in Java - Wikipedia

   en.wikipedia.org/.../Primitive_wrapper_class_in_Java

   With Java 5.0, additional wrapper classes were introduced in the java.util.concurrent.atomic package. These classes are mutable and cannot be used as a replacement for the regular wrapper classes. Instead, they provide atomic operations for addition, increment and assignment. The atomic wrapper classes and their corresponding types are:

8. Test assertion - Wikipedia

   en.wikipedia.org/wiki/Test_assertion

   In computer software testing, a test assertion is an expression which encapsulates some testable logic specified about a target under test. The expression is formally presented as an assertion, along with some form of identifier, to help testers and engineers ensure that tests of the target relate properly and clearly to the corresponding specified statements about the target.

9. Assignment (computer science) - Wikipedia

   en.wikipedia.org/wiki/Assignment_(computer_science)

   In computer programming, an assignment statement sets and/or re-sets the value stored in the storage location(s) denoted by a variable name; in other words, it copies a value into the variable. In most imperative programming languages , the assignment statement (or expression) is a fundamental construct.