array object java

1int[] data = {10,20,30,40,50,60,71,80,90,91};
2// or
3int[] data;
4data = new int[] {10,20,30,40,50,60,71,80,90,91};
5// or
6int[] data = new int[10];
7data = {10,20,30,40,50,60,71,80,90,91};

1obj array[] = new obj[10];
2
3for (int i = 0; i < array.length; i++) {
4  array[i] = new obj(i);
5}

1class Main{
2   public static void main(String args[]){
3     //create array of employee object  
4    Employee[] obj = new Employee[2] ;
5 
6     //create & initialize actual employee objects using constructor
7     obj[0] = new Employee(100,"ABC");
8     obj[1] = new Employee(200,"XYZ");
9 
10     //display the employee object data
11     System.out.println("Employee Object 1:");
12     obj[0].showData();
13     System.out.println("Employee Object 2:");
14     obj[1].showData();
15  }
16}
17//Employee class with empId and name as attributes
18class Employee{
19  int empId;
20  String name;
21  //Employee class constructor
22  Employee(inteid, String n){
23     empId = eid;
24     name = n;
25  }
26public void showData(){
27   System.out.print("EmpId = "+empId + "  " + " Employee Name = "+name);
28   System.out.println();
29 }
30}

1import java.util.stream.Stream;
2
3class Example {
4  
5  public static void main(String[] args) {
6    int len = 5;  // For example.
7    
8    // Use Stream to initialize array.
9    Foo[] arr = Stream.generate(() -> new Foo(1))  // Lambda can be anything that returns Foo. 
10                      .limit(len)
11                      .toArray(Foo[]::new);
12  }
13  
14  // For example.
15  class Foo {
16    public int bar;
17
18    public Foo(int bar) {
19      this.bar = bar;
20    }
21  }
22}
23

1Class obj[]= new Class[array_length]
2

1class ObjectArray{
2   public static void main(String args[]){
3     Account obj[] = new Account[2] ;
4     //obj[0] = new Account();
5     //obj[1] = new Account();
6    obj[0].setData(1,2);
7    obj[1].setData(3,4);
8    System.out.println("For Array Element 0");
9    obj[0].showData();
10    System.out.println("For Array Element 1");
11     obj[1].showData();
12  }
13}
14class Account{
15  int a;
16  int b;
17 public void setData(int c,int d){
18   a=c;
19   b=d;
20 }
21 public void showData(){
22   System.out.println("Value of a ="+a);
23   System.out.println("Value of b ="+b);
24 }
25}