Thread: I don't know why this error using get() method from the ArrayList class

Hi Every body!

I'm trying to store (momently) each element of a ArrayList in a Programmer object variable to use one of its method, but I'm getting and and error and a warning I don't know neither why nor how to fix it

public double getBonusPay() {
        //bonus pay = base bonus * (1 - 0.01 * number of programmers that have overtime pay)
        double totalbonus = 0.00;
        int i;        
        int numProgrammers = 0;
        Programmer proWithoverp;
        for(i = 0; i <= this.juniors.size(); i++){
            proWithoverp = this.juniors.get(i); // <<============here is where I get the error, but I don't know why
            if(proWithoverp.getOvertimePay() > 0){
                numProgrammers++;
            }
            if(numProgrammers <= 100){
                totalbonus = getBaseBonus() * (1 - 0.01 * numProgrammers);
            }
        }
 
        return totalbonus;
    }

in the constructor I declared juniors as:

this.juniors = new ArrayList();

this is the error and the warning

javac -Xlint Test.java
./jac444b/a1/Manager.java:24: warning: [unchecked] unchecked call to add(E) as a member of the raw type java.util.ArrayList
this.juniors.add(pgr);
^
./jac444b/a1/Manager.java:56: incompatible types
found : java.lang.Object
required: jac444b.a1.Programmer
proWithoverp = this.juniors.get(i);
^
1 error
1 warning

hi there!

How do i do that??? because If I type what you wrote I get a syntax error