Given an array the task is to shift all elements by one position towards left from it’s actual position.
Example: Consider an array {4, 1, 7, 2, 9}. The program should shift all elements left by one place giving an output like {1, 7, 2, 9, 4}.
Java
import java.util.*;
public class LeftShift
{
public static void main(String args[])
{
int size=0,temp=0;
Scanner sc=new Scanner(System.in);
System.out.print("Enter array size: ");
size=sc.nextInt();
int ar[]=new int[size];
System.out.println("Enter array elements:-");
for(int i=0;i<size;i++)
{
ar[i]=sc.nextInt();
}
System.out.print("Original array: ");
for(int i=0;i<size;i++)
{
System.out.print(ar[i]+" ");
}
temp=ar[0];
for(int i=0;i<size-1;i++)
{
ar[i]=ar[i+1];
}
ar[size-1]=temp;
System.out.print("\nArray after left shift by one place: ");
for(int i=0;i<size;i++)
{
System.out.print(ar[i]+" ");
}
}
}