Java for each loop array object traversal

Java for each loop array object traversal

Syntax

For (type itr-var: iterableobj) statement-block

View traversal array instances

Public class mainclass {
Public static void main (string args []) {
Int nums [] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
 
For (int x: nums ){
System. out. print (x + "");
X = x * 10; // no effect on nums
    }
  
System. out. println ();

For (int x: nums)
System. out. print (x + "");

System. out. println ();
  } 
}

Output

1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10

Traverse enum objects

Public class mainclass {
Enum season {
Spring, summer, fall, winter
  }

Public static void main (string [] args ){
For (season: season. values ()){
System. out. println ("the season is now" + season );
    }
  }
}

Result

The season is now spring
The season is now summer
The season is now fall
The season is now winter

Traverse arraylist

Import java. util. arraylist;
 
Public class mainclass {
   
Public static void main (string args []) {
Arraylist <double> list = new arraylist <double> ();

List. add (1, 10.14 );
List. add (1, 20.22 );
List. add (1, 30.78 );
List. add (1, 40.46 );

Double sum = 0.0;
For (double itr: list)
Sum = sum + itr;
System. out. println (sum );
 
  }
}