Need help with shifting all values to the left of an array and place a 0 in the last location each time it is called.?
Create a new Java program called LeftShift.
Create an array size 10 that contains 1’s and 0’s only. (Any combination.)
Create a method called shiftValues that passes an array. It should shift all values to the left and place a 0 in the last location each time it is called.
Call your shiftValues method a three times to show shift.
Paste code here once completed.
NOTE: To earn the extra credit, program must show use of the pass by reference concept, which means you should only have one array throughout the entire program.
import java.util.*;
public class LeftShift{
static Random r=new Random();
public static final int dice=2;
public static final int size=10;
public static final int count=5;
public static void main(String[] args){
int[] a=new int[size];
for(int i=0;i<size;i++){
int seq=r.nextInt(dice);
a[i]=seq;
}
System.out.println("Sequence: "+Arrays.toString(a));
for(int i=0;i<count;i++){
shiftValues(a);
}
}
public static void shiftValues(int[] a){
for(int i=0;i<a.length-1;i++){
a[i]=a[i+1];
a[a.length-1]=0;
}
System.out.println("Sequence: "+Arrays.toString(a));
}
}
Answers
brilliant_moves
Hi, kupokupo. Your code is nearly right, but I've had to make some changes.
import java.util.*;
public class LeftShift{
... static Random r=new Random();
... public static final int dice=2;
... public static final int size=10;
... public static final int count=3;
... public static void main(String[] args){
... ... int[] a=new int[size];
... ... for(int i=0;i<size;i++){
... ... ... int seq=r.nextInt(dice);
... ... ... a[i]=seq;
... ... }
... ... System.out.println("Sequence: "+Arrays.toString(a));
... ... for(int i=0;i<count;i++){
... ... ... System.out.println ("Sequence: "+Arrays.toString (shiftValues(a)));
... ... }
... }
... public static int[] shiftValues(int[] a){
... ... for(int i=0;i<a.length-1;i++){
... ... ... a[i]=a[i+1];
... ... }
... ... a[a.length-1]=0;
... ... return a;
... }
}
//Note: To show indentation (which Y!A removes), I've used "... ". Replace dots with a tab or spaces in your code.
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