Java toarray

import java.util.*;
 
public class Scaler {
 
   public static void main(String[] args) {
       ArrayList<Integer> list = new ArrayList<>();
       list.add(1);
       list.add(2);
       list.add(3);
       list.add(4);
       //Implementing the first way to convert list to array in java
       Object[] res1Arr=list.toArray();
       //Implementing the second way to convert list to array in java
       Integer[] res2Arr = new Integer[4];
       list.toArray(res2Arr);
       //Printing the first array
       System.out.println("Printing 'res1Arr':");
           for(Object obj: res1Arr)
           //Typecasting required for the first method
               System.out.println((Integer)obj);
       //Printing the second array
       System.out.println("Printing 'res2Arr':");
           for(Integer i: res2Arr)
               System.out.println(i);
   }
}

Source: scaler.com

Similar codes

0 vote181 views1 answer
Bebra
Java
0 vote172 views1 answer
Android studio layout bring to front
Java
0 vote182 views1 answer
Ava program to add two numbers taking input from user
Java
0 vote171 views1 answer
Java create empty arraylist
Java
7 votes182 views2 answers
Make javafx open full screen
Java
-1 vote261 views1 answer
@notblank annotation spring
Java Spring
0 vote184 views1 answer
What is the import for gogga class java
Java
0 vote179 views1 answer
Determine the distance between two circles in java
Java
2 votes245 views1 answer
Javafx object rectangle
Java
0 vote223 views1 answer
Pass a list of string as PathVariable to api spring boot
Java Spring