Replace a value in arraylist java

Arraylist replace value java

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]

Source: grepper.com

How to replace existing element in ArrayList

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);
    }
}

Source: howtodoinjava.com

Similar codes

1 vote202 views1 answer
Java swing make window not resizable
Java
1 vote177 views2 answers
Get epoch time in java
Java
0 vote172 views2 answers
Android sqlite tutorial for beginners
Java
0 vote172 views1 answer
If is true javascrtiptr
Java
1 vote284 views1 answer
Android.support.design.widget.coordinatorlayout androidx
Java
0 vote128 views1 answer
Java variable declared
Java
0 vote188 views1 answer
How much epsom salt should strawberries need
Java
20 votes187 views3 answers
Replace string java online
Java
1 vote214 views1 answer
Spring security enable global cors
Java Spring
0 vote172 views1 answer
The Google Mobile Ads SDK was initialized incorrectly. AdMob publishers
Java