CODEWITHSUNDEEP
javaindexoutofboundsexception
ananymous59
ananymous59

Reputation: 200

ArrayIndexOutOfBounds only at print

I dont understand why this is happening. without the print statement the code works fine but when i try to print the elements i get ArrayIndexoutOfBounds. For example if i try to feed 3 elements i get exception thrown. can anyone please explain

class MyClass
{
    int search(OtherClass obs,target) {
        double a[]=new double[obs.length];
        for(int i=0;i<obs.length;i++)
        {
            a=obs[i].getTarget();
            System.out.println(a[i]);//without this it does not throw
        }
    }
}

class OtherClass
{
    String Target;

    public String getTarget() {
        return target;
    }

    public void setTarget(String target) {
        this.target = target;
    }
}

Upvotes: 0

Views: 73

Answers (3)

scaletos
scaletos

Reputation: 113

System.out.println(a)

but not 

System.out.println(a[i])

Upvotes: 2

Md. Nasir Uddin Bhuiyan
Md. Nasir Uddin Bhuiyan

Reputation: 1596

You should use this, this statement will set value from obs[i].getTarget() to a[i]

a[i]=obs[i].getTarget();

Edited:

If getTarget() method returns an array then you can this way,

for(int i=0;i<obs.length;i++)
{
    double a[] =obs[i].getTarget(); // putting the array from getTarget() to a[]
    for(int j=0;j<a.length;j++)
    System.out.println(a[j]);//printing all the values of a[]
}

Upvotes: 0

Manu Artero
Manu Artero

Reputation: 10263

In your code obs is an array: obs[i]; each position of that array is, itself, other array: obs[i].getTarget() #=> double[] I guess if, really obshas a method named getTarget() which returns an array.... probably this?

double a[] = new double[obs.length];
double obsArray[] = obs.getTarget();
for(int i=0; i<obs.length; i++){
 a[i] = obs[i];
 System.out.println(a[i]);
}

Upvotes: 0

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