checkSortedArrayAsc()

Step 1: Define The Function

Firstly, we need to define a function that will accept an array as an argument. The function will take in array a as a parameter.

public boolean checkSortedArrayAsc(int[] a){ }

Step 2: Check if Array is Empty

Next, we will check if the array is empty or if it only contains a single element. In both cases, we can return 'true' because an empty array or an array with a single element can be considered as sorted in ascending order.

public boolean checkSortedArrayAsc(int[] a){
if (a.length < 2)
return true;
}

Step 3: Loop Through the Array

Then, we proceed to loop through each element in the array starting from the second element and compare it with the preceding element. If we find a case where the preceding element is larger, then we return 'false'.

public boolean checkSortedArrayAsc(int[] a){
if (a.length < 2)
return true;

for(int i=1; i<a.length; i++){
if(a[i] < a[i-1])
return false;
}
}

Step 4: Return True

Finally, if the function didn't return 'false' which means no preceding element was larger than its successor, then the array is sorted in ascending order. So, we should return 'true'.

public boolean checkSortedArrayAsc(int[] a){
if (a.length < 2)
return true;
for(int i=1; i<a.length; i++){
if(a[i] < a[i-1])
return false;
}
return true;
}

Conclusion

We have now written a function in Java which checks if an array is sorted in ascending order or not. It makes a comparison between each element and its predecessor, and determines the sorted status based on those comparisons. If the array is sorted in ascending order, it will return true, and if not, it will return false.