Insert an element in Array, Search and Sort Array by using java program

By: Saravanan Emailed: 1768 times Printed: 2515 times    

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In this tutorial we are going to see how to insert an element for specified index and how to search an element in array and not in array. 

import java.util.*;
public class ArrayExample
{
public static void main(String args[]) throws Exception
{
int a[] = {9, 4, 6, -3, -7, 2, 3, -2, 5, -9, 4};
Arrays.sort(a);
printArray("Sorted array", a);

int i = Arrays.binarySearch(a, 9);
System.out.println("Array have 9. " + i);

i = Arrays.binarySearch(a, 8);
System.out.println("Array have not 8." + i);

int i1 = -i - 1;
a = insertElement(a, 8, i1);
printArray("In array 8 is added", a);

}
private static void printArray(String message, int a[]) 
{
System.out.println(message + ": [length: " + a.length + "]");
for (int i=0, n=a.length; i<n; i++)
{
if (i != 0) System.out.print(", ");
System.out.print(a[i]);
}
System.out.println();
}
private static int[] insertElement(int original[], int element, int in)
{
int length = original.length;
int destination[] = new int[length+1];
System.arraycopy(original, 0, destination, 0, in);
destination[index] = element;
System.arraycopy(original, in, destination, in+1, length-in);
return destination;
}
}

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