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How to remove element from arraylist in java
“How to remove element from arraylist in java” Code Answer
How to remove element from arraylist in java
java by
Nutty Newt
on Dec 01 2020
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1
// java program on ArrayList remove(int index) method example import java.util.ArrayList; import java.util.List; public class ArrayListRemoveIndex { public static void main(String[] args) { List
al = new ArrayList<>(); al.add(56); al.add(28); al.add(39); al.add(59); al.add(82); System.out.println("Before using ArrayList.remove(int index) method: " + al); // removes element 28 al.remove(1); // element 39 is now moved one position back // So element 39 is removed al.remove(1); System.out.println("After using ArrayList.remove(int index) method: " + al); } }
Source:
www.flowerbrackets.com
How to remove element from arraylist in java
java by
Nutty Newt
on Dec 01 2020
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1
// how to remove element from arraylist in java while iterating import java.util.ArrayList; import java.util.Iterator; import java.util.List; public class ArrayListWhileIterating { public static void main(String[] args) { List
fruits = new ArrayList<>(); fruits.add("grapes"); fruits.add("pineapple"); fruits.add("apple"); fruits.add("mango"); fruits.add("banana"); fruits.add("orange"); // before removing any element System.out.println("Before - remove element from arraylist while iterating: "); System.out.println(fruits); Iterator
itr = fruits.iterator(); while(itr.hasNext()) { String strFruit = itr.next(); if(strFruit.equals("apple")) { itr.remove(); } } // after removing an element System.out.println("After - remove element from arraylist while iterating: "); System.out.println(fruits); } }
Source:
www.flowerbrackets.com
How to remove element from arraylist in java
java by
Nutty Newt
on Dec 01 2020
Donate
1
// Java.util.ArrayList.remove(Object) method example import java.util.ArrayList; import java.util.List; public class ArrayListRemoveObjectMethod { public static void main(String[] args) { List
al = new ArrayList<>(); al.add(56); al.add(28); al.add(39); al.add(59); al.add(82); System.out.println("Before using ArrayList.remove(Object) method size of ArrayList: " + al); // removes element 56 al.remove(new Integer(56)); // removes element 28 al.remove(new Integer(28)); System.out.println("After using ArrayList.remove(Object) method size of ArrayList: " + al); } }
Source:
www.flowerbrackets.com
How to remove element from arraylist in java
java by
Nutty Newt
on Dec 01 2020
Donate
1
// how to remove all elements from arraylist in java import java.util.ArrayList; public class RemoveAllElements { public static void main(String[] args) { ArrayList
fruits = new ArrayList<>(); fruits.add("pineapple"); fruits.add("orange"); fruits.add("apple"); fruits.add("banana"); fruits.add("watermelon"); System.out.println("ArrayList before using clear() method: "); System.out.println(fruits); // empty an ArrayList using clear() method fruits.clear(); System.out.println("ArrayList after using clear() method: "); System.out.println(fruits); ArrayList
colors = new ArrayList<>(); colors.add("red"); colors.add("blue"); colors.add("green"); colors.add("white"); System.out.println("ArrayList before using removeAll() method: "); System.out.println(colors); // empty an ArrayList using removeAll() method colors.removeAll(colors); System.out.println("ArrayList after using removeAll() method: "); System.out.println(colors); } }
Source:
www.flowerbrackets.com
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