this obj java meaning
public class Point {
public int x = 0;
public int y = 0;
//constructor
public Point(int x, int y) {
this.x = x;
this.y = y;
}
}this obj java meaning
public class Point {
public int x = 0;
public int y = 0;
//constructor
public Point(int x, int y) {
this.x = x;
this.y = y;
}
}this in java
this() : used for calling the constructor .
we can only use it in the constructor
this. : used for calling the instance variables
we can use in any object instancesthis keyword in java
// java program using ‘this’ keyword
class Demo
{
int m;
int n;
public void setValue(int m, int n)
{
// java this keyword
this.m = m;
this.n = n;
}
public void showValue()
{
System.out.println("Value m = " + m);
System.out.println("Value n = " + n);
}
}
public class ThisExample
{
public static void main(String[] args)
{
Demo obj = new Demo();
obj.setValue(5,6);
obj.showValue();
}
}how to use the this keyword in java
class Other{
public double num;
public Other(int num){
this.num = num;
System.out.println(num);
//print 5 to the console
}
}
class scratch{
public static void main(String[] args) {
Other method = new Other(5);
System.out.println(method.num);
//prints 5.0 to the console
}
}this keyword in java
// this keyword in java example
import java.util.*;
class Demo
{
// instance variable
int m;
int n;
public void setValue(int m, int n)
{
m = m;
n = n;
}
public void showValue()
{
System.out.println("Value m = " + m);
System.out.println("Value n = " + n);
}
}
public class ThisKeywordDemo
{
public static void main(String[] args)
{
Demo obj = new Demo();
obj.setValue(5, 6);
obj.showValue();
}
}Copyright © 2021 Codeinu
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