JAVA Constructors and Methods Which of the modifier can't be used for constructors? protected static public private protected static public private ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods The variables declared in a class for the use of all methods of the class are called None of these objects reference variables instance variables None of these objects reference variables instance variables ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods class MyClass{int i;int j;public MyClass(int i, int j){this.i = i;this.j = j;}public void call(){System.out.print("One");}}public class Test{public static void main(String args[]){MyClass m = new MyClass(); //line 1m.call(); //line 2}} Compilation succeed but no output. Compilation fails due to an error on line 1 One Compilation fails due to an error on line 2 Compilation succeed but no output. Compilation fails due to an error on line 1 One Compilation fails due to an error on line 2 ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods The following code contains one compilation error, find it?public class Test {Test() { } // line 1static void Test() { this(); } // line 2 public static void main(String[] args) { // line 3Test(); // line 4}} At line 1, constructor Tester must be marked public like its class At line 4 At line 2, constructor call At line 3, compilation error, ambiguity problem, compiler can't determine whether a constructor At line 1, constructor Tester must be marked public like its class At line 4 At line 2, constructor call At line 3, compilation error, ambiguity problem, compiler can't determine whether a constructor ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods Determine output:public class Test{ public static void main(String args[]){ MyClass obj = new MyClass(); obj.val = 1; obj.call(obj); System.out.println(obj.val); }}class MyClass{ public int val; public void call(MyClass ref){ ref.val++; }} 2 Compilation Error 1 3 None of these 2 Compilation Error 1 3 None of these ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What is the output of the above program ?class Num { Num(double x ){ System.out.println( x ) ; } }public class Test extends Num { public static void main(String[] args){ Num num = new Num( 2 ) ; } } 0 None of these 2.0 Compile time error 0 None of these 2.0 Compile time error ANSWER DOWNLOAD EXAMIANS APP
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