public Integer getPasswordReusePrevention() {
        return this.passwordReusePrevention;
    }
<p>
Specifies the number of previous passwords that IAM users are prevented from reusing.
</p>
<p>
If you do not specify a value for this parameter, then the operation uses the default value of <code>0</code>.
The result is that IAM users are not prevented from reusing previous passwords.
</p>

@return Specifies the number of previous passwords that IAM users are prevented from reusing.</p>
        <p>
        If you do not specify a value for this parameter, then the operation uses the default value of
        <code>0</code>. The result is that IAM users are not prevented from reusing previous passwords.
aws-java-sdk-iam/src/main/java/com/amazonaws/services/identitymanagement/model/UpdateAccountPasswordPolicyRequest.java