JavaAlgorithms/Others/InsertDeleteInArray.java

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import java.util.*;
public class InsertDeleteInArray {
public static void main(String[] args) {
Scanner s = new Scanner(System.in); // Input statement
System.out.println("Enter the size of the array");
int size = s.nextInt();
int a[] = new int[size];
int i;
// To enter the initial elements
for(i=0;i<size;i++){
System.out.println("Enter the element");
a[i] = s.nextInt();
}
// To insert a new element(we are creating a new array)
System.out.println("Enter the index at which the element should be inserted");
int insert_pos = s.nextInt();
System.out.println("Enter the element to be inserted");
int ins = s.nextInt();
int size2 = size + 1;
int b[] =new int[size2];
for(i=0;i<size2;i++){
if(i <= insert_pos){
b[i] = a[i];
}
else{
b[i] = a[i-1];
}
}
b[insert_pos] = ins;
for(i=0;i<size2;i++){
System.out.println(b[i]);
}
// To delete an element given the index
System.out.println("Enter the index at which element is to be deleted");
int del_pos = s.nextInt();
for(i=del_pos;i<size2-1;i++){
b[i] = b[i+1];
}
for(i=0;i<size2-1;i++)
System.out.println(b[i]);
}
}