Tag: programming languages

Questions Related to programming languages

Multiple choice technology programming languages

ORA-12154 Means?

TNS:name lookup failure"
TNS:could not resolve service name"
TNS:protocol adapter error"
Package error raised with DBMS_SYS_ERROR.RAISE_SYSTEM_ERROR

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Multiple choice technology programming languages

Consider the following piece of code: 1 long i = 2 ; 2 switch (i) { 3 case 1: 4 System.out.println ("Case 1"); 5 case 2: 6 System.out.println ("Case 2"); 7 case 3: 8 System.out.println ("Case 3"); 9 default: 10 System.out.println ("Default"); 11 } Which of the following lines will be included in the output? (Choose all that apply, please bear with code as formating it sems is not possible,first numbers represent line numbers)

Case 1
Case 2
Case 3
Default
Compiler Error

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Multiple choice technology programming languages

In Java the compiler will always insert a default , no argument constructor into any class definition

True
False

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Multiple choice technology programming languages

In a method call when an object reference is passed as an argument , So what gets passed actually ?

The object itself
a copy of reference
the original reference
a reference to a copy

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Multiple choice technology programming languages

In Java if an arithmetic operation is performed then , In case the operands are of different types the resulting type is always the widest of two types

True
False

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Multiple choice technology programming languages

consider the following scenarioint i = 0;if ( i ) {System.out.println("This won't print");}else{System.out.println("This prints");}

This won't print
This prints
There's a runtime exception
scenario is not legal

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Multiple choice technology programming languages

A constructor can be declared abstract

True
False

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Multiple choice technology programming languages

The legal values for a boolean in java are choose all that applies

1,0
TRUE,FALSE
true , false , TRUE,FALSE
true , false

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Multiple choice technology programming languages

Its possible for a non-abstract class to have abstract methods.

True
False

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Multiple choice technology programming languages

The following statement would allocate memory on? char *ptr = malloc(10);

Stack
Heap
Code Segment
Data Segment

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