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Replace element in arraylist while iterating

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Deepika Sahu answered on August 7, 2020 Popularity 8/10 Helpfulness 1/10

answer Replace element in arraylist while iterating

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Replace element in arraylist while iterating

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public class ArrayListExample 
{
    public static void main(String[] args) 
    {
        ArrayList<String> namesList = new ArrayList<String>(Arrays.asList( "alex", "brian", "charles") );
         
        System.out.println(namesList);
         
        //Replace item while iterating
        for(int i=0; i < namesList.size(); i++) 
        {
            if(namesList.get(i).equalsIgnoreCase("brian")) {
                namesList.set(i, "Lokesh");
            }
        }
         
        System.out.println(namesList);
    }
}

Popularity 8/10 Helpfulness 1/10 Language java

Source: howtodoinjava.com

Tags: arraylist element java replace

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Contributed on Dec 30 2022

Deepika Sahu

0 Answers Avg Quality 2/10

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arraylist replace value java

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list.set(1,"new value");

//example ..

List<String> list = new ArrayList<>();
list.add("one");
list.add("two");
list.add("three");
System.out.println(list); // [one,two,three]
list.set(1,"new");
System.out.println(list); //[one,new,three]

Popularity 10/10 Helpfulness 4/10 Language java

Source: Grepper

Tags: arraylist arra

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Contributed on Aug 07 2020

dr3am_warri0r

0 Answers Avg Quality 2/10

arraylist replace

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listName.set(index, value);

Popularity 10/10 Helpfulness 2/10 Language java

Source: Grepper

Tags: arraylist arra

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Contributed on Jan 15 2021

Atlas

0 Answers Avg Quality 2/10

How to replace existing element in ArrayList

Comment

public class ArrayListExample 
{
    public static void main(String[] args) 
    {
        ArrayList<String> list = new ArrayList<>();
         
        list.add("A");
        list.add("B");
        list.add("C");
        list.add("D");
         
        System.out.println(list);
 
         
        //Replace C with C_NEW
 
 
        //1 - In multiple steps
         
        int index = list.indexOf("C");
         
        list.set(index, "C_NEW");
         
        System.out.println(list);
 
 
        //2 - In single step replace D with D_NEW
 
        list.set( list.indexOf("D") , "D_NEW");
 
        System.out.println(list);
    }
}

Popularity 8/10 Helpfulness 1/10 Language java

Source: howtodoinjava.com

Tags: arraylist element

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Contributed on Dec 30 2022

Deepika Sahu

0 Answers Avg Quality 2/10

Replace element in arraylist while iterating

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