Java method to sum any number of ints

Question

I need to write a java method sumAll   which takes any number of integers and returns their sum    sumAll 1 2 3  returns 6 sumAll   returns 0 sumAll 20  returns 20   I don t know how to do this

User · Answer

public static void main String args        System out println SumofAll 12 13 14 15     Insert your number here             public static int SumofAll int   sum   Call this method in main method            int total 0   Declare a variable which will hold the total value              for int x sum                         total  sum                 return total   And return the total variable

User · Answer

You need   public int sumAll int   numbers        int result   0      for int i   0   i  lt  numbers length  i              result    numbers i              return result      Then call the method and give it as many int values as you need   int result   sumAll 1 4 6 3 5 393 4 5          System out println result

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import java util Scanner   public class SumAll       public static void sumAll int arr       initialize method return sum         int sum   0          for  int i   0  i  lt  arr length  i                  sum    arr i                     System out println  Sum is       sum              public static void main String   args            int num          Scanner input   new Scanner System in    create scanner object          System out print  How many   you want to add               num   input nextInt     return num from keyboard         int   arr2   new int num           for  int i   0  i  lt  arr2 length  i                  System out print  Enter Num     i   1                       arr2 i    input nextInt                      sumAll arr2

User · Answer

If your using Java8 you can use the IntStream   int   listOfNumbers    5 4 13 7 7 8 9 10 5 92 11 3 4 2 1   System out println IntStream of listOfNumbers  sum          Results  181   Just 1 line of code which will sum the array

User · Answer

Use var args  public long sum int    numbers         if numbers    null   return 0L         long result   0L        for int number  numbers            result    number                return result

User · Answer

public int sumAll int    nums      var-args to let the caller pass an arbitrary number of int     int sum   0    start with 0     for int n   nums      this won t execute if no argument is passed         sum    n     this will repeat for all the arguments           return sum    return the sum

User · Answer

You could do  assuming you have an array with value and array length  arrayVal i   arrayLength   int sum   0  for  int i   0  i  lt  arrayLength  i          sum    arrayVal i      System out println  the sum is    sum     I hope this helps

[java] Java method to sum any number of ints

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