shifting values

shreyasi das
shifting values
Posted in : Java Beginners

November 14, 2009 at 4:52 PM

Hi Friend,

Try the following code:

import java.util.Scanner;
public class ShiftArrayValues{
public static void main(String[] args) {
int[] array = new int[10];
System.out.println("Enter 10 numbers");
Scanner input=new Scanner(System.in);
for(int i=0;i<array.length;i++){
array[i]=input.nextInt();
}
System.out.println("Original array is:");
printArray(array);
System.out.println();
System.out.println("Left of Right");
String st=input.next();
System.out.println("Enter an amount by which to rotate the array");
int amount = input.nextInt();
if(st.equals("Left")){
shiftLeft(array,amount);
printArray(array);
}
else if(st.equals("Right")){
shiftRight(array,amount);
printArray(array);
}
}
public static void shiftLeft(int[] array, int amount){
for( int j=0; j<amount; j++) {
int a = array[0];
int i;
for(i = 0; i < array.length-1; i++)
array[i] = array[i+1];
array[i]= a;
}
}
public static void shiftRight(int[] array, int amount) {
for( int j=0; j<amount; j++) {
int a = array[array.length-1];
int i;
for(i = array.length-1; i > 0; i--)
array[i] = array[i-1];
array[i]= a;
}
}
public static void printArray(int[] array) {
for(int x=0; x<array.length; x++) {
System.out.print(array[x] + " ");
}
System.out.println();
}
}

Thanks

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