JAVA Constructors and Methods class A{ A(String s){} A(){}}1. class B extends A{2. B(){}3. B(String s){4. super(s);5. }6. void test(){7. // insert code here8. }9. }Which of the below code can be insert at line 7 to make clean compilation ? None of these All of these A a = new B(); A a = new B(5); A a = new A(String s); None of these All of these A a = new B(); A a = new B(5); A a = new A(String s); ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods What is the output for the below code ?1. public class A{2. int add(int i, int j){3. return i+j;4. }5. }6. public class B extends A{7. public static void main(String argv[]){8. short s = 9;9. System.out.println(add(s,6));10. }11.} None of these 15 Compile fail due to error on line no 8 Compile fail due to error on line no 9 Compile fail due to error on line no 2 None of these 15 Compile fail due to error on line no 8 Compile fail due to error on line no 9 Compile fail due to error on line no 2 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 2 3 1 Compilation Error None of these 2 3 1 Compilation Error ANSWER DOWNLOAD EXAMIANS APP
JAVA Constructors and Methods class MyClass{ MyClass(){ System.out.print("one"); } public void myMethod(){ this(); System.out.print("two"); }} public class TestClass{ public static void main(String args[]){ MyClass obj = new MyClass(); obj.myMethod(); }} one one two two one one None of these one Exception Compilation Error one one two two one one None of these one Exception Compilation Error 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() throw IOException{} void examians() {} throws IOException examians() throws IOException{} void examians(void) throws IOException{} void examians() throws IOException{} void examians() throw IOException{} void examians() {} throws IOException examians() throws IOException{} void examians(void) throws IOException{} void examians() throws IOException{} 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 fails due to an error on line 2 One Compilation fails due to an error on line 1 Compilation succeed but no output. Compilation fails due to an error on line 2 One Compilation fails due to an error on line 1 Compilation succeed but no output. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS