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
}
}new keyword in java
When you use the keyword new for example
JFrame j = new JFrame(); you are creating an instance of the class JFrame.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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