Finding the minimum value of int numbers in an array (Java)

Question

I\'m trying to find the minimum value of numbers in an array but it doesn\'t always work out properly. This is the code I wrote:

        for (int i=0; i <         


        

Answer 1

One option is sort your array and get the first element:

import java.util.Arrays;

...

int ints[] = {30,5,7,4,10};
Arrays.sort(ints);

int min = ints[0];
int max = ints[ints.length - 1];

Answer 2

If arr is an array of non-primitive numerics, I'd recommend

java.util.Collections.min(java.util.Arrays.asList(arr));

as that will be simpler to maintain. There's some justification in reverting to hand-coding if you need to pull the minimum and maximum out at the same time but I'd advise against hand-coding loops if there's a library function available.

In any case, you ought to check arr != null and the existence of a zeroth element.

Answer 3

TRY this:

int min = arr[0];
    for(int j=1;j<arr.length;j++)
    {
            if(min>arr[j])
            {
                min= arr[j];
            }
    }
    System.out.println("min no is "+min);

Answer 4

I am entering 5 values and storing them in the array and looping through them to find the min value but it prints 0 all the time. What's wrong in this code? I used the same logic for the max value and has no problem.

public class FindMinValue {

    public static void main(String[] args) {
        Scanner scnr = new Scanner(System.in);
        int i;
        int NUM_VALUES = 5;
        int[] userVals = new int [NUM_VALUES];
        
        System.out.println("Enter " + NUM_VALUES + " values one at a time.");
        
        int minVal = userVals[0]; //min value so far
        
        for(i = 0; i < userVals.length; ++i) {
            userVals[i] = scnr.nextInt();
            if(userVals[i] < minVal) {
                minVal = userVals[i];
            }
        }
        System.out.println("Min Value is :" + minVal);
        

    }

}

Answer 5

int min = arr[0];
for(int num : arr) {
    if (num < min){
        min = num;
    }
}

min now contains minimum value.

Answer 6

      int min=0; 
        for (int i = 0; i < array.length; i++) {
        if (min > array[i]) {
        min = array[i];
        }
}

    System.out.println(min);

simple way to get MAX and MIN

To get MIN

System.out.println(getMinValue(your array)); 

and for MAX

System.out.println(getMaxValue(your array));