JAVA Constructors and Methods public class Test { }What is the prototype of the default constructor? public Test(void) Test(void) None of these Test( ) public Test( ) public Test(void) Test(void) None of these Test( ) public Test( ) ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What is the output of the program?class Test{ public int display(int x, int y){ return ("The sum of x and y is " + x + y); } public static void main(String args[]){ Test test = new Test(); System.out.println(test.display(4,5)); } } The sum of x and y is 9 None of these does not compile The sum of x and y is 45 The sum of x and y is 9 None of these does not compile The sum of x and y is 45 ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods Which of these is a legal definition of a method named examveda assuming it throws IOException, and returns void. Also assume that the method does not take any arguments. Select the one correct answer. void examians() throws IOException{} examians() throws IOException{} void examians(void) throws IOException{} void examians() throw IOException{} void examians() {} throws IOException void examians() throws IOException{} examians() throws IOException{} void examians(void) throws IOException{} void examians() throw IOException{} void examians() {} throws IOException ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What will be the return type of a method that not returns any value? void double None of these int void double None of these int 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 reference variables None of these instance variables objects reference variables None of these instance variables objects 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++; }} None of these 3 2 1 Compilation Error None of these 3 2 1 Compilation Error ANSWER DOWNLOAD EXAMIANS APP
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