java loop object
MyObject objects[] = new MyObject[6];
for (MyObject o: objects) {
o = new MyObject();
}
MyObject objects[] = new MyObject[6];
for(int i = 0; i < objects.length; i++) {
objects[i] = new MyObject();
}java loop object
MyObject objects[] = new MyObject[6];
for (MyObject o: objects) {
o = new MyObject();
}
MyObject objects[] = new MyObject[6];
for(int i = 0; i < objects.length; i++) {
objects[i] = new MyObject();
}object object javascript
person = {
'name':'john smith'
'age':41
};
console.log(person);
//this will return [object Object]
//use
console.log(JSON.stringify(person));
//insteadusing class in java
class Number {
int number;
// square numbers
public boolean isSquare(){
double squareRoot = Math.sqrt(number);
if(squareRoot == Math.floor(squareRoot))
{
return true;
} else {
return false;
}
}
// triangular numbers
public boolean isTriangular(){
int x = 1;
int triangularNumber = 1;
while(triangularNumber < number){
x++;
triangularNumber = triangularNumber + x;
}
if(triangularNumber == number){
return true;
} else {
return false;
}
}
}
// testing
Number myNumber = new Number();
myNumber.number = 16;
System.out.println(myNumber.isSquare());javadoc reference general toString
/**
* This javadoc text will reference Object's
* {@link java.lang.Class#toString()} method.
*/
// Output in Javadoc:
// This javadoc text will reference Object's Class.toString() method.using class in java
public class HelloWorld {
public static void main(String[] args) {
// how to use class in java
class User{
int score;
// method that can be used outside the class
public boolean hasWon(){
if(score >= 100){
return true;
} else {
return false;
}
}
}
User dave = new User();
dave.score = 20;
System.out.println(dave.hasWon());
}
}object in java
Objects: came from class, we can create multiple objects from a class
ArrayList<> list = new ArrayList<>();
Class refName OBJECT
each object has its own copy of instance variable
· declared outside the blocks or methods
Object: Instance of the class. We can store different data's to objects
Object Creation: with new keyword.
ClassName obj = new ExistingConstructor;Copyright © 2021 Codeinu
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