C#•3y ago

❔ ✅ method array arg error

13 Replies

Ryan-T1412OP•3y ago

problem in line 4 but idk why

Angius•3y ago

What problem?

Ryan-T1412OP•3y ago

Angius•3y ago

You need to declare the array properly new[]{true, true, false} Or new bool[]{true, true, false} The {a, b, c} syntax works only when the type is apparent on the left side of assignment

Ryan-T1412OP•3y ago

like what?

Angius•3y ago

int[] foo = {1, 2, 3}

Ryan-T1412OP•3y ago

identifying array first is much better 🙂 and it looks cleaner

//Creating Objects
Problem test1 = new Problem();
bool[] myArray = {true, false, false, true, false};
int result = test1.countTrue(myArray);
// Printing Variables
Console.WriteLine(result);
// Class
class Problem
{
    //Method
    public int countTrue(bool[] myArray)
    {
        int counter = 0;
        foreach (bool item in myArray)
        {
            if( item == true ){
                counter++;
            }
        }
        return counter;
    }
}

//Creating Objects
Problem test1 = new Problem();
bool[] myArray = {true, false, false, true, false};
int result = test1.countTrue(myArray);
// Printing Variables
Console.WriteLine(result);
// Class
class Problem
{
    //Method
    public int countTrue(bool[] myArray)
    {
        int counter = 0;
        foreach (bool item in myArray)
        {
            if( item == true ){
                counter++;
            }
        }
        return counter;
    }
}

Output: 2 !close

Accord•3y ago

Closed!

cap5lut•3y ago

heya ryan, one little tip: if( item == true ) can be written simply as if (item) because item is already a boolean value 😉

Ryan-T1412OP•3y ago

nice to know that thanks 😄 you are helping everytime 😂

cap5lut•3y ago

in if (condition) the condition must be an expression that results in a boolean value, so someBool == true is the same someBool someBool == false (or someBool != true) is the same as !someBool (! is an unary operator to negate the boolean value, so true becomes false and false becomes true)

Ryan-T1412OP•3y ago

bool[] myArray = {true, false, false, true, false};
int result = test1.countTrue(myArray);
// Printing Variables
Console.WriteLine(result);
// Class
class Problem
{
    //Method
    public int countTrue(bool[] myArray)
    {
        return myArray.Count(val => val);
    }
}

bool[] myArray = {true, false, false, true, false};
int result = test1.countTrue(myArray);
// Printing Variables
Console.WriteLine(result);
// Class
class Problem
{
    //Method
    public int countTrue(bool[] myArray)
    {
        return myArray.Count(val => val);
    }
}

others code and mine 😄 solving it with just 1 line

Accord•3y ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ ✅ method array arg error

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