what is the difference between the methods and.stub() and and.returnvalue(value)?
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callFake takes a function as a parameter. This allows you to fake the method call and return a value of your desire. ... myMethod can have parameters and can have a return type, but it doesn't matter since stub just intercepts the call and will return null if there is a return type.
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We can use == operators for reference comparison (address comparison) and . equals() method for content comparison. In simple words, == checks if both objects point to the same memory location whereas . equals() evaluates to the comparison of values in the objects.
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Remarks. The IsDBNull method tests whether the value parameter is equal to DBNull.Value. It is equivalent to the following code: C# Copy. return DBNull.Value.Equals(value);
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The distinction seems to be: A method in Alice is used to send a message to an object asking it to perform some action. Importantly, a method does not return a value. A function in Alice is also used to send a message to an object, typically asking the object to send back some information.
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There is one more major difference between the two methods is when the object we are converting is an array. When you convert an array using Object. ... Second difference is when the object is null, ValueOf() returns a String "null", while toString() will return null pointer exception.
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4 Answers. Java always uses the pass-by-value concept to pass the arguments. In the scenario mentioned, the reference to the HashMap itself is passed by value. The valueMap refers to the same object as the inputMap since both of them are referring to the same object.
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The major difference between the 2 is that . then() call returns a promise (resolved with a value returned from a callback) while . success() is more traditional way of registering callbacks and doesn't return a promise.
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['String.', 'Integer.', 'Float (floating point numbers - also called double)', 'Boolean.', 'Array.', 'Object.', 'NULL.', 'Resource.']
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A function without a return statement will return a default value. In the case of a constructor called with the new keyword, the default value is the value of its this parameter. For all other functions, the default return value is undefined . The parameters of a function call are the function's arguments.
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The difference is- A function must return a value (of any type) by default definition of it, whereas in case of a procedure you need to use parameters like OUT or IN OUT parameters to get the results. You can use a function in a normal SQL where as you cannot use a procedure in SQL statements.
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Non-void methods differ from void methods in that they give something back. ... Since the method sum has a return type of int the return line is required to return a value of this type. A non-void method's return line can be just about anything as long the code after the return matches the return type.
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main function return type is integer by default. ... When return type is integer ,you have to include "return 0" statement at the end . This line returns zero to the operating system at the end of the program. If we specified return type as void,then no need to write return 0 at the end.
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The difference in both methods is in the way they react when the string you are trying to convert to integer can't be converted to an integer. And in such a circumstance, the int. Parse() method will throw an exception whereas the int. TryParse() will return a boolean value of false.
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['1) Call equals() and equalsIgnoreCase() method on known String literal rather unknown object.', '2) Prefer valueOf() over toString() where both return same result.', '5) Use of annotation @NotNull and @Nullable.']
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The ResultSet interface declares getter methods (for example, getBoolean and getLong ) for retrieving column values from the current row. You can retrieve values using either the index number of the column or the alias or name of the column. The column index is usually more efficient. Columns are numbered from 1.
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A procedure does not return a value. Instead, it is invoked with a CALL statement to perform an operation such as modifying a table or processing retrieved records. On the other hand, a function is invoked within an expression and returns a single value directly to the caller to be used in the expression.
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startDateValue = new Date(startDate); endDateValue = new Date(endDate); long diff = endDateValue. getTime() - startDateValue. getTime(); long seconds = diff / 1000; long minutes = seconds / 60; long hours = minutes / 60; long days = (hours / 24) + 1; Log.