问在Eclipse中调试递归方法--有什么聪明的方法可以避免陷入更多的嵌套调用吗？

EN

int combinations(int, a1, int a2) {
    return(combinationsImpl(a1,a2,0));
}

int combinationsImpl(int, a1, int a2, int level) {
    if(done) {
        // on done 
        return(value);
    }
    // you can use level to do conditional break points, prints etc
    // you can save the value when it crashes or throws an exception etc
    // if you need to see variables in the stack log the level and the variables
    // to console or a file and then see on what level values become anomalous etc. 
    return(combinationsImpl(a1,a2,++level));
}