- Current will flow to earth
- Supply voltage will drop
- Supply voltage will increase
- No current will flow in the conductor
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what is the result of the following piece of code: public class Person{ public void talk(){ System.out.print("I am a Person"); } } public class Student extends Person{ public void talk(){ System.out.print("I am a Student"); } } public class Test{ public static void main(String args[]){ Person p = new Student(); p.talk(); } }?
Answer: Option 2 Let'
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What is the result of compiling and running the following code class Base{ public Base(){ System.out.print("Base"); } } public class Derived extends Base{ public Derived(){ this("Examveda"); System.out.print("Derived"); } public Derived(String s){ System.out.print(s); } public static void main(String[] args){ new Derived(); } }?
Answer: Option 3 1. new Derived(); statement executes and invoke the non-parametrized constructor of derived class i.e. public Derived(); 2. As Derived class is a subclass of class Base so super(); executes...
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What is the output for the below code import java.io.FileNotFoundException; class A{ public void printName() throws FileNotFoundException{ System.out.println("Value-A"); } } class B extends A{ public void printName() throws NullPointerException{ System.out.println("Name-B"); } } public class Test{ public static void main (String[] args) throws Exception{ A a = new B(); a.printName(); } }?
Answer: Option 3 The overriding method can throw any unchecked (runtime) exception, regardless of exception thrown by overridden method. NullPointerException is RuntimeException so compiler will not complain.
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You have the following code in a file called Test.java class Base{ public static void main(String[] args){ System.out.println("Hello"); } } public class Test extends Base{} What will happen if you try to compile and run this?
Answer: Option 4 This will compile and print "Hello". The entry point for a standalone java program is the main method of the class that is being run. The java run-time...
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What will be the output interface A{ public void method(); } class One{ public void method(){ System.out.println("Class One method"); } } class Two extends One implements A{ public void method(){ System.out.println("Class Two method"); } } public class Test extends Two{ public static void main(String[] args){ A a = new Two(); a.method(); } }?
Answer: Option 2 Let'
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Directions : Following question consists of a statement followed by three arguments I, II and III . You have to decide which of the arguments is a STRONG arguments and which is a WEAK Argument. Statement : Should the public sector undertakings be kilo wed to adopt hire and fire policy Arguments : I. Yes. This will help the public sector undertakings to get rid of non-performing employees and reward the performing employees. II. No. This will give an unjust handle to the management and they may use it indiscriminately. III. Yes. This will help increase the level of efficiency of these organizations and these will become profitable establishments.?
Answer: Option 4 'Hire and fire policy' implies 'taking up the performing employees and discarding the non-performing ones'. Clearly, such a policy would stand out to encourage employees to work...
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Which of the following is a good conductor of heat but a bad conductor of electricity ?
Answer: Option 4 Mica is a good conductor of heat but bad conductor of electricity.
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Which of the following is an advantage of stranded conductor over equivalent single conductor ?
Answer: Option 4 Let'
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