how to append to an array in java
import java.util.Arrays;
class ArrayAppend {
public static void main( String args[] ) {
int[] arr = { 10, 20, 30 };
System.out.println(Arrays.toString(arr));
arr = Arrays.copyOf(arr, arr.length + 1);
arr[arr.length - 1] = 40; // Assign 40 to the last element
System.out.println(Arrays.toString(arr));
}
}how to add a number to an array in java
List<Integer> myList = new ArrayList<Integer>();
myList.add(5);
myList.add(7);java array add element
// A better solution would be to use an ArrayList which can grow as you need it.
// The method ArrayList.toArray( T[] a )
// gives you back your array if you need it in this form.
List<String> where = new ArrayList<String>();
where.add(element);
where.add(element);
// If you need to convert it to a simple array...
String[] simpleArray = new String[ where.size() ];
where.toArray( simpleArray );java add element to existing array
//original array
String[] rgb = new String[] {"red", "green"};
//new array with one more length
String[] rgb2 = new String[rgb.length + 1];
//copy the old in the new array
System.arraycopy(rgb, 0, rgb2, 0, rgb.length);
//add element to new array
rgb2[rgb.length] = "blue";
//optional: set old array to new array
rgb = rgb2;Copyright © 2021 Codeinu
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