Java Program to shift array elements to the left

Let us first create an int array −

int[] arr = { 10, 20, 30, 40, 50, 60, 70, 80, 90 };

Now, shift array elements to the left with arraycopy() and placing the elements correctly so that it gets shifted to the left −

System.arraycopy(arr, 1, arr, 0, arr.length - 1);

Example

 Live Demo

import java.util.Arrays;
public class Demo {
   public static void main(String[] argv) throws Exception {
      int[] arr = { 10, 20, 30, 40, 50, 60, 70, 80, 90 };
      System.out.println("Initial array...\n"+Arrays.toString(arr));
      System.arraycopy(arr, 1, arr, 0, arr.length - 1);
      System.out.println("Array after shifting to the left...");
      System.out.println(Arrays.toString(arr));
   }
}

Output

Initial array...
[10, 20, 30, 40, 50, 60, 70, 80, 90]
Array after shifting to the left...
[20, 30, 40, 50, 60, 70, 80, 90, 90]

Karthikeya Boyini

Published on 25-Apr-2019 09:56:47

• Related Questions & Answers
• Java Program to shift array elements to the right
• Shift the bits of integer array elements to the left in Numpy
• Shift the bits of array elements of a Two-Dimensional array to the left in Numpy
• Python program to left rotate the elements of an array
• Shift certain array elements to front of array - JavaScript
• Shift left in a BigInteger in Java
• What does the bitwise left shift operator do in Java?
• Shift the bits of integer array elements to the right in Numpy
• Shift the bits of an integer to the left in Numpy
• Left Shift and Right Shift Operators in C/C++
• Explain JavaScript Bitwise NOT, Left shift and Right shift?
• Shift the bits of array elements of a Two-Dimensional array to the right in Numpy
• Shift last given number of elements to front of array JavaScript
• C++ program to find array after removal of left occurrences of duplicate elements
• Java Program to shift bits in a BigInteger