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  Vector in java collection, Adding, removing, replacing and Iterating by for and for each method. package com . vector ; import java . util . Vector ; public class Vector4 { public static void main ( String [] args ) { Vector v1 = new Vector () ; //adding element v1 . add ( 23 ) ; v1 . add ( 21 ) ; v1 . add ( 4 ) ; v1 . add ( 13 ) ; v1 . add ( 63 ) ; System . out . println ( v1 ) ; //replacing element //replace 4 with Sakshi : System . out . println ( "Object replace:" + v1 . set ( 2 , "Sakshi" ) ) ; System . out . println ( v1 ) ; //remove element v1 . remove ( 1 ) ; System . out . println ( "After remove 21:" + v1 ) ; //Iterating vector //using for loop for ( int i = 0 ; i < v1 . size () ; i ++ ) { System . out . print ( v1 . get ( i ) + " " ) ; } System . out . println () ; //using for each loop for ( Object obj : v1 ) { System . out . print ( obj + " " ) ; } } } output [23, 21, 4, 13, 63...

 Java Vector class in Collection for creating Default  and generic object in code package com . vector ; import java . util . Vector ; public class Vector3 { public static void main ( String [] args ) { //default vector Vector v = new Vector () ; //adding element v . add ( 3 ) ; v . add ( 4 ) ; v . add ( 5 ) ; v . add ( "JAVA" ) ; v . add ( "Operation" ) ; //printing the element System . out . println ( "Vector v is:" + v ) ; //second //creating generic vector Vector < Integer > v1 = new Vector < Integer > () ; //adding element v1 . add ( 7 ) ; v1 . add ( 8 ) ; v1 . add ( 19 ) ; v1 . add ( 67 ) ; System . out . println ( "Vector v1 is:" + v1 ) ; } } output in console Vector v is:[3, 4, 5, JAVA, Operation] Vector v1 is:[7, 8, 19, 67]

 Java Vector class method implementation Java Code for vector class methods maximum method implemented in this code! package com . vector ; import java . util .*; public class Vector2 { public static void main ( String [] args ) { //vector size int m = 7 ; //declaring vector of size m Vector < Integer > v = new Vector < Integer > ( m ) ; //adding element in vector for ( int i = 1 ; i <= m ; i ++ ) v . add ( i ) ; //printing element System . out . println ( v ) ; //remove element of index 2 v . remove ( 2 ) ; System . out . println ( v ) ; //iterating vector for ( int i = 0 ; i < v . size () ; i ++ ) //printing individual one by one element System . out . print ( v . get ( i ) + " " ) ; } } out put [1, 2, 3, 4, 5, 6, 7] [1, 2, 4, 5, 6, 7] 1 2 4 5 6 7

 Program of vector in java collection framework Vector class implements a growable array of object means vector can increase their size. Program//code package com . vector ; import java . util . Vector ; //The Vector class implements a growable array of objects. public class Vector1 { public static void main ( String [] args ) { //creating vector Vector < Integer > v = new Vector <> () ; //add element v . addElement ( 34 ) ; v . addElement ( 33 ) ; v . addElement ( 31 ) ; System . out . println ( v ) ; //insert element at index 1 v . insertElementAt ( 12 , 2 ) ; System . out . println ( "adding 12 at index 2:" + v ) ; //remove element v . removeElementAt ( 1 ) ; System . out . println ( "Remove element from index 1:" + v ) ; //print all with for loop for ( int j : v ) { System . out . print ( j + " " ) ; } } } //Output [34, 33, 31] adding 12 at index 2:[34, 33, 12, 31] Remove element from...

  package com . arrayList ; import java . util . ArrayList ; public class ArrayList2 { public static void main ( String [] args ) { ArrayList < String > al = new ArrayList < String > () ; //adding al . add ( "Aman" ) ; al . add ( "Neha" ) ; System . out . println ( "Original list:" + al ) ; //adding at specified place al . add ( 1 , "Mohan" ) ; System . out . println ( "printing:" + al ) ; System . out . println ( al . get ( 1 )) ; //removing al . remove ( 0 ) ; System . out . println ( al ) ; //updating at index 0 al . set ( 0 , "Riya" ) ; System . out . println ( "List after updation:" + al ) ; } }

   package com . arrayList ; //ArrayList program // collection framework in java import java . util . ArrayList ; public class ArrayList1 { public static void main ( String [] args ) { // Creating an ArrayList ArrayList < Integer > al = new ArrayList < Integer > () ; //adding element in arraylist al . add ( 8 ) ; al . add ( 7 ) ; al . add ( 6 ) ; //printing arraylist System . out . println ( al ) ; } }