what is the main usage of an abstract keyword?please follow the program class A { void display() { System.out.println("hai"); } void print() { } } class B extends A { void print() { System.out.println("Hello"); } } In this program i was gives the implementation of print() according to my requirements in subclass.And there is no definition in superclass then why we can use abstract keyword before a method that i want to gives definition in other classes,is any mistakes in the above usage of method?

711

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what is Huvec cell number ?

831

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Why transformer used in UPS??

236

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IF HT CAPACITOR IN ON POSITION IS THERE ANY LOSSES I.S I SQURE OCCURS IN THE SYSTEM

839

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how does grading rings & spacers in transmission line works? Working Principle?

879

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WHAT IS THE DIFFERENCE BETWEEN HOLD, PARKED, SAMPLE, RECURRING AND ACCRUAL/DEFFERAL? WHAT IS THE MEANING OF RECONCILIATION? WHAT PURPOSE WE DO THE RECONCILE? WHAT IS THE MEANING OF SPL GL? WHAT ARE THE CUT OVER ACTIVITIES? WHAT IS THE MEANING OF GAP ANALYSIS? PLZ EXPLAN?

2473

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when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??

819

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actually what is the working of a call center? what is the method of process and how do they get source?

987

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In Galvonised iron and stainsteel pipes, in which pipe friction losses will more and why ?

1361

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How to Use mouse_event() to similate mouse events?

1050

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Draw a flow chart and write a program for the difference between the sum of elements with odd and even numbers. Two dimensional array.

5146

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What do you mean by Stimulastion Test in Diesel Genarator / Why & when it's conducted ?

464

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We are a UK company selling electronic s/w licenses to customer in India. We have a PAN Number. Why is TDS being deducted on a product? Why is TDS calculated on the invoice value - surely it is supposed to be on Income and not Turnover? What is the correct TDS % deduction?

811

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what will happen if i connect 12 volt battery with 24 volt battery charger.

764

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what are symmetrical and non symmetrical components in electrical installation.

894

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