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Why must you override the hashcode method while overriding the equals method?
Because, if two objects are supposed to be equal as per the equals() method, then the value returned by the hashCode() method must also be the same. This will not be the case if you override only the equals method and this can have some confusing effects when using those objects with hash related collections. So it is always a good idea to override the hashCode() method if you are providing an implementation for the equals method.
What is the difference between you equals 10 and you equals equals 10 in c language?
The = operator is the assignment operator. The == operator is the equality or equals operator. The = operator is the assignment operator. We use it to assign a value (the right hand operand) to an object (the left hand operand). The value must be of the same type as the object unless the value can implicitly convert to the object's type. If not, we must explicitly cast the value to the appropriate type. The operator evaluates to the value of the object after assignment, thus creating a temporary value that can be used in other expressions. Examples: int you; you = 10; // assign the value 10 to the object named 'you' int me, you; me = 10; you = 10; Note that the second example can also be written: int me, you; me = you = 10; This is because the expression 'you = 10' evaluates to the temporary value 10 (the value of 'you' after assignment) which we then assign to 'me'. Operators are evaluated according to operator precedence, and assignment 'chains' like this are always evaluated from right to left. The == operator is the equality or equals operator. We use it to determine if two object's have the same value. If so, the expression evaluates true, otherwise false. Operators that evaluate true or false are known as Boolean operators (functions that return true or false are known as predicates). Typically we use the == operator in conditional expressions: if (a == b) { // code to execute when the value of a is equal to the value of b } else { // code to execute when the value of a is not equal to the value of b } while (a == b) { // This code will loop repeatedly so long as a is equal to b at the beginning of each iteration } The == operator is one of six Boolean operators that can be used to compare object values: == : equal != : not equal < : less than <= : less than or equal > : greater than >= : greater than or equal
The sum of the voltage drops around a series circuit is the voltage source input.?
Yes, in a series circuit, the sum of the voltage drops across each component equals the total voltage supplied by the voltage source. This principle is a manifestation of Kirchhoff's Voltage Law, which states that the total voltage around a closed loop must equal zero. Therefore, the voltage provided by the source must equal the combined voltage drops across all components in the circuit.
Is the current in one branch of a parallel circuit more than less than or equal to the total current entering the junction point of the circuit?
Answer: less. Answer: Kirchhoff's Current Law states that the sum of all currents into a junction (or out of a junction) must be zero. This refers to the algebraic some, that is, if you consider the current into the junction, any current entering the junction will be counted as positive, while any current leaving the junction will be counted as negative. Thus, any individual current will be equal to the negative of the sum of all the other branches at the junction.
Difference between binary search tree and heap tree?
A binary search tree uses the definition: that for every node,the node to the left of it has a less value(key) and the node to the right of it has a greater value(key).Where as the heap,being an implementation of a binary tree uses the following definition:If A and B are nodes, where B is the child node of A,then the value(key) of A must be larger than or equal to the value(key) of B.That is,key(A) ≥ key(B).
What is 3n-2 equals n equals 3?
That question has no answer since n must equal 3 and if you substitute n in 3n-2, you will see that it does not equal 3, it equals 7.
What is 2x-y equals 5 when x equals 4?
If x=4... then 'y' MUST equal 3 !
Is xl7.6x7.0 an inequality?
No. To be an inequality, it must somewhere have a greater than, less than, greater-or-equal, or less-or-equal sign.
What does n equal if n equals 0.222?
The question gives the value of n. n MUST equal 0.222.
What rule must be applied to inequalities when you divide or multiply by a negative number?
You have to flip the inequality sign. If it is less than(<) it has to become greater than(>). If it is greater than(>), it has to become less than(<). If it is less than equal to(<=), it has to become greater than equal to(>=). If it is greater than equal to(>=)., it must become less than equal to(<=).
What postulates states that a quantity must be equal to itself symmetric identity reflexive closure?
Which of the following postulates states that a quantity must be equal to itself
What must be added to 378 to equal 400?
22 added to 378 equals 400.
What number equals 100?
100.Any other number must be greater than or less than 100.For more advanced mathematicians, 99.999... is equal to 100 as its limiting value.
Is it greater then less then or equal to?
It cannot be greater "then" or less "then" because the word is "than", not "then". Since it cannot be either of those two, it must be equal to.
Which in equation shows the following statements19. Which inequation shows the following statements x is 6 or less and more than - 5?
The inequation that represents the statements "x is 6 or less and more than -5" is (-5 < x \leq 6). This indicates that (x) must be greater than -5 and can be equal to or less than 6.
If y equals 3x and 3x equals 12 what does y equal?
y = 12. It's the transitive property. y = 12 = 3x.
What number must you add to the following statement to make it true 9 plus x equals 0?
If this is the equation you presented: 9+x=0 then x would have to equal (-9). This is because the negative 9 and the positive 9 cancel out to equal zero. -Owlsrule96
