ensureCapacity() Method : Java.util.ArrayList

Declaration :

public void ensureCapacity(int minCapacity)

1	public void ensureCapacity(int minCapacity)

Explanation :

Purpose	Method increases the capacity of this ArrayList instance
Parameters	minCapacity ==> Desired minimum capacity
Return Value	NA
Exception	NA

Example

The following example shows the usage of java.util.Arraylist.ensureCapacity(int minCapacity) method.

package com.c4learn.arraylist;
import java.util.ArrayList;
public class ArrayListExamples {
  public static void main(String args[]) {
    // Create ArrayList 1
    ArrayList<String> arrlist1 = new ArrayList<String>(5);
    // Fill Elements in ArrayList 1
    arrlist1.add("A");
    arrlist1.add("B");
    arrlist1.add("C");
      // Increase the capacity of the ArrayList to 10 elements
      arrlist1.ensureCapacity(10);
      // Print Array List
    for (String value : arrlist1) {
      System.out.println("List Element : " + value);
    }
  }
}

package com.c4learn.arraylist;

import java.util.ArrayList;

public class ArrayListExamples {

public static void main(String args[]) {

// Create ArrayList 1

ArrayList<String> arrlist1 = new ArrayList<String>(5);

// Fill Elements in ArrayList 1

arrlist1.add("A");

arrlist1.add("B");

arrlist1.add("C");

// Increase the capacity of the ArrayList to 10 elements

arrlist1.ensureCapacity(10);

// Print Array List

for (String value : arrlist1) {

System.out.println("List Element : " + value);

}

Output :

List Element : A
List Element : B
List Element : C

List Element : A

List Element : B

List Element : C