Real-Life Example
Java Arrays - Real-Life Examples
Let’s write a program that determines the average of several ages to show how arrays may be used practically:
Example
// An array storing different ages
int ages[] = {20, 22, 18, 35, 48, 26, 87, 70};
float avg, sum = 0;
// Get the length of the array
int length = ages.length;
// Loop through the elements of the array
for (int age : ages) {
sum += age;
}
// Calculate the average by dividing the sum by the length
avg = sum / length;
// Print the average
System.out.println("The average age is: " + avg);
Additionally, we develop a program in this example to determine the lowest age among various age ranges:
Example
// An array storing different ages
int ages[] = {20, 22, 18, 35, 48, 26, 87, 70};
float avg, sum = 0;
// Get the length of the array
int length = ages.length;
// Create a 'lowest age' variable and assign the first array element of ages to it
int lowestAge = ages[0];
// Loop through the elements of the ages array to find the lowest age
for (int age : ages) {
// Check if the current age is smaller than the current 'lowest age'
if (lowestAge > age) {
// If the smaller age is found, update 'lowest age' with that element
lowestAge = age;
}
}
// Output the value of the lowest age
System.out.println("The lowest age in the array is: " + lowestAge);
