Question

Write Java program Lab43.java which declares and initializes numeric array of 5 elements (int num[5]) and produces as output the sum of integers in an array, the largest and the smallest element in an array. Your program should contain the following methods:

• public static int sum(int[])
• public static int findLargest(int[])
• public static int findSmallest(int[])

Answer 1

Code

public class Lab43 {

public static void main(String[] args) {
int []a={10,50,80,40,20};
System.out.print("Our array is : ");
for(int i=0;i<a.length;i++)
System.out.print(a[i]+" ");
  
int s=sum(a);
int largest=findLargest(a);
int smallest=findSmallest(a);
  
System.out.println("\n\nSum of the array: "+s);
System.out.println("\nLargest from the array: "+largest);
System.out.println("\nSmallest from the array: "+smallest);
}

private static int sum(int[] a) {
int sum=0;
for(int i=0;i<a.length;i++)
sum+=a[i];
return sum;
}

private static int findLargest(int[] a) {
int max=a[0];
for(int i=1;i<a.length;i++)
if(max<a[i])
max=a[i];
return max;
}

private static int findSmallest(int[] a) {
int min=a[0];
for(int i=1;i<a.length;i++)
if(min>a[i])
min=a[i];
return min;
}
  
}

output

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