Duplikat array

ExampleDuplicateArray.java

import java.util.Arrays;

public class ExampleDuplicateArray {
    public static void main(String[] args) {
        int[] source = {1,2,3,4,5,6,7,8,9};
        int[] source1 = {1,2,3};
        int[] destination = null;
        
        System.out.println("Source array = " + Arrays.toString(source));
        
        destination = copyFirstFiveFieldsOfArrayUsingSystem(source);
        System.out.println("Duplikat array di index pertama sampai kelima jika tersedia. Hasil array = " + Arrays.toString(destination));
        
        destination = copyFirstFiveFieldsOfArrayUsingSystem(source1);
        System.out.println("Duplikat array di index pertama sampai kelima jika tersedia. Hasil array = " + Arrays.toString(destination));
        
        destination = copyFullArrayUsingSystem(source);
        System.out.println("Duplikat semua index array menggunakan fungsi System.copyarray(). Hasil array = " + Arrays.toString(destination));
        
        destination = copyFullArrayUsingClone(source);
        System.out.println("Duplikat semua index array menggunakan fungsi clone(). Hasil array = " + Arrays.toString(destination));
        
        destination = copyFullArrayUsingArrayCopyOf(source);
        System.out.println("Duplikat semua index array menggunakan fungsi Array.copyOf(). Hasil array = " + Arrays.toString(destination));
        
        destination = copyLastThreeUsingArrayCopyOfRange(source);
        System.out.println("Duplikat index ketiga terakhir dari array menggunkan fungsi Arrays.copyOfRange() function. Hasil array = " + Arrays.toString(destination));
    }
    
    private static int[] copyFirstFiveFieldsOfArrayUsingSystem(int[] source) {
        if(source.length > 5){
            int[] temp = new int[5];
            
            System.arraycopy(source, 0, temp, 0, 5);
            
            return temp;
        }else{
            int[] temp = new int[source.length];
            
            System.arraycopy(source, 0, temp, 0, source.length);
            
            return temp;
        }
        
    }

    private static int[] copyFullArrayUsingArrayCopyOf(int[] source) {
        return Arrays.copyOf(source, source.length);
    }
    
    private static int[] copyFullArrayUsingSystem(int[] source) {
        int[] temp = new int[source.length];
        
        System.arraycopy(source, 0, temp, 0, source.length);
        
        return temp;
    }
    
    private static int[] copyLastThreeUsingArrayCopyOfRange(int[] source) {
        return Arrays.copyOfRange(source, source.length-3, source.length);
    }

    private static int[] copyFullArrayUsingClone(int[] source) {
        return source.clone();
    }
}