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insert_delete_in_array.java

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import java.util.*;

public class Array {

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]);

}