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Java Interview Program to find second highest number in an integer array without sorting the elements.


  1. package com.instanceofjava;
  2. class SecondLargestNumber{
  3.  
  4. public static void main(String args[])
  5.  
  6. int numbers[] = {6,3,37,12,46,5,64,21};
  7. int highest = 0;
  8.  int second_highest = 0;
  9.  
  10. for(int n:numbers){
  11.  
  12. if(highest < n){
  13.  
  14.       second_highest = highest;
  15.       highest =n;
  16.  
  17.  } else if(second_highest < n){
  18.  
  19.                 second_highest = n;
  20.  
  21. }
  22.  
  23. }
  24.         System.out.println("First Max Number: "+highest);
  25.         System.out.println("Second Max Number: "+second_highest);

  26.  
  27.  }
  28.  
  29. }



Output:
 
  1. First Max Number: 64
  2. Second Max Number: 46

Java Interview Program to find second highest number in an integer array by sorting the elements.


  1. package com.instanceofjava;
  2. class SecondLargestNumber{
  3.  
  4. public static void main(String args[])
  5.  
  6. int numbers[] = {6,3,37,12,46,5,64,21};
  7.  
  8.   Arrays.sort(numbers);
  9.  
  10.   System.out.println("Largest Number: "+numbers[numbers.length-1]);
  11.   System.out.println("Second Largest Number: "+numbers[numbers.length-2]);
  12.  }
  13.  
  14. }




Output:
 
  1. Largest Number: 64
  2. Second Largest Number: 46



Instance Of Java

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3 comments for Find second highest number in an integer Array

  1. import java.io.*;
    class Secondhigh
    {
    public static void main(String args[])throws IOException
    {
    BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
    int n;
    System.out.println("enter size");
    n=Integer.parseInt(br.readLine());
    System.out.println("enter array");
    int[] a;
    a=new int[n];
    for(int i=0;ia[j+1])
    {
    temp=a[j];
    a[j]=a[j+1];
    a[j+1]=temp;
    }
    for(int i=0;i<n;i++)
    System.out.print(a[i]);
    System.out.println();
    System.out.println(a[n-2]);
    }
    }

    ReplyDelete
  2. //add the pair of array and find highest and second_higest number;
    package com.ad;
    public class ArrayAdd {
    int hig,sec_hig, k, n,m=0;
    void add() {
    int a[]= {4,6,8,9,2,6};//add {4+6=10,6+8=14...2+6=8} i.e{10,14,17,11,8} and find highest,Second_hig number;
    for(int i=0;i<a.length-1;i++) {
    m++;
    k=a[n]+a[m];
    // System.out.println(k);
    if(hig < k){
    sec_hig = hig;
    hig =k;
    } else if(sec_hig < k){
    sec_hig = k;
    }
    n++;
    }
    System.out.println("highest="+hig);
    System.out.println("Second_hig="+sec_hig);
    }
    public static void main(String[] args){
    ArrayAdd aa=new ArrayAdd();
    aa.add();
    }
    }


    ReplyDelete
  3. int max =0;
    int secmax = 0;

    for(int i : arr) {
    if(i > max) {
    secmax = max;
    max = i;
    }
    else if(i > secmax && i != max) {
    secmax = i;
    }
    }

    int[] res = {max, secmax};
    return res;

    ReplyDelete

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