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Detail Form
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1.
In Java, which of the following is the most restrictive access specifier that allows sub classes in any package to access the members of a super class?
2.
In Java, prototype of the default constructor is _______________________________.
3.
The following Java code does not compile successfully because __________________________________________________.
class cube {
int w;
int h;
int l;
}
class example {
public static void main(String args[]) {
cube ob = new cube();
System.out.println(ob);
}
}
int w;
int h;
int l;
}
class example {
public static void main(String args[]) {
cube ob = new cube();
System.out.println(ob);
}
}
4.
In Java, which of the following methods is used by the Object class to obtain run time class of its instances?
5.
In Java, which of these classes can never be a subclass?
6.
In C++, the auto-increment (++) and the auto-decrement (--) operators work on floating-point values.
7.
What is the output of the following Java code:
public class Two {
public static void main(String args[]) {
int z = 8;
z += --z;
System.out.println("Value of z : " + z);
}
}
public class Two {
public static void main(String args[]) {
int z = 8;
z += --z;
System.out.println("Value of z : " + z);
}
}
8.
What is the output of the following Java code:
class TestClass {
public static void main(String args[]) throws Exception {
String d = "java ";
d += d;
d += "world of ";
d.concat("programming ");
System.out.println(d);
}
}
public static void main(String args[]) throws Exception {
String d = "java ";
d += d;
d += "world of ";
d.concat("programming ");
System.out.println(d);
}
}
9.
What is the output of the following Java code:
class TestClass {
public static void main(String args[]) throws Exception {
String d = "java ";
d += d;
d += "world of ";
d.concat("programming ");
System.out.println(d);
}
}
public static void main(String args[]) throws Exception {
String d = "java ";
d += d;
d += "world of ";
d.concat("programming ");
System.out.println(d);
}
}
10.
What is the output of the following Java code:
import java.util.*;
class {
public static void main(String[] args) {
int x = 5;
while (x < 10) {
System.out.print(x);
x++;
}
}
}
class {
public static void main(String[] args) {
int x = 5;
while (x < 10) {
System.out.print(x);
x++;
}
}
}