Question

(JAVA)

InvertArrangement

+invert(int[] a) : int []

+print(int[] a) : void

Example 1: the invert method receives the following arrangement: [1,2,3,4,5]

The invert method returns the array [5,4,3,2,1]

Example 2: the print method receives the following array: [5,4,3,2,1]

The print method prints: 5,4,3,2,1 (data separated by commas).

TIP: for the print method use System.out.print () without the "ln".

Answer 1

Example 1:

public static int[] invert(int[] a){
int l=a.length;
int j=0;
int n[]=new int[l];//create new array
for(int i=l-1;i>=0;i--){
n[j]=a[i];//copy elements from last to new array
j++;
}
return n;//return array
}

Example 2:

public static void print(int[] a){
int i;
for(i=0;i<a.length-1;i++){
System.out.print(a[i]+",");//print each element
}
System.out.print(a[i]);
}

Full Code:

public class Main
{
public static int[] invert(int[] a){
int l=a.length;
int j=0;
int n[]=new int[l];//create new array
for(int i=l-1;i>=0;i--){
n[j]=a[i];//copy elements from last to new array
j++;
}
return n;//return array
}
public static void print(int[] a){
int i;
for(i=0;i<a.length-1;i++){
System.out.print(a[i]+",");//print each element
}
System.out.print(a[i]);
}
   public static void main(String[] args) {
       int a[]={1,2,3,4,5};
       a=invert(a);//call function and invert elements
       print(a);
   }
}

Screenshots:

Screenshots:

The screenshots are attached below for reference.

Please follow them for output.

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