Q1: Consider the following class definition: public class AClass { private int u; private int v; public void print() { } public void set(int x, int y) { } public AClass() { } public AClass(int x, int y) { } } What is wrong with the following class definition? class BClass AClass { private int w; public void print() { System.out.println("u + v + w = " + (u + v + w); } public BClass() { super(); w = 0; } public BClass(int x, int y, int z) { super(x, y); w = z; } }
OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
Q1:
Consider the following class definition:
public class AClass
{
private int u;
private int v;
public void print()
{
}
public void set(int x, int y)
{
}
public AClass()
{
}
public AClass(int x, int y)
{
}
}
What is wrong with the following class definition?
class BClass AClass
{
private int w;
public void print()
{
System.out.println("u + v + w = " + (u + v + w);
}
public BClass()
{
super();
w = 0;
}
public BClass(int x, int y, int z)
{
super(x, y);
w = z;
}
}
Q2:
Consider the following statements:
public class YClass
{
private int a;
private int b;
public void one()
{
}
public void two(int x, int y);
{
}
public YClass()
{
}
}
class XClass extends YClass
{
private int z;
public void one()
{
}
public XClass()
{
}
}
YClass yObject;
XClass xObject;
- Write the definition of the default constructor of YClass so that the instance variables of YClass are initialized to 0.
- Write the definition of the default constructor of XClass so that the instance variables of XClass are initialized to 0.
- Write the definition of the method two of YClass so that the instance variable a is initialized to the value of the first parameter of two and the instance variable b is initialized to the value of the second parameter of two.
please I want solution :(
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