We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
  1. Prepare
  2. Algorithms
  3. Warmup
  4. Simple Array Sum
  5. Discussions

Simple Array Sum

  • mdhanifkhan116
     + 0 comments

    Language: JAVA 15

    We can solve this problem in two ways:

    1) By using For Each Loop to iterate all elements in List and adding it to the variable sum : 

    public static int simpleArraySum(List<Integer> ar) {
    
    int sum= 0;
    for( int i : ar ){
        sum = sum + i ;   // i contains elements of List ar
    }
		
    return sum;
    }

    2) And by using For Loop where we will add each element present in List using ListName.get(index) method to variable sum :

    public static int simpleArraySum(List<Integer> ar) {
    
    int sum= 0;
    for( int i=0; i < ar.size(); i++ ){
        sum = sum + ar.get(i) ;
    }
    
    return sum;
    }