TestJava.java

//package javaclient.net;
public class TestJava {
    public TestJava child1;
    public TestJava child2;
    public TestJava child3;

    public static void main(String[] args) {
        if (args.length<2) {
            System.out.println("TestJava <depth> <reps>");
            return;
        }
        int depth=Integer.parseInt(args[0]);
        int reps=Integer.parseInt(args[1]);
        System.out.println("TestJava started depth="+depth+" reps="+reps);
        float min_time=Long.MAX_VALUE;
        float max_time=Long.MIN_VALUE;
        float avg_time=0;
        int count=0;
        for(int rep=0; rep<reps; rep++) {
            long start = System.nanoTime();

            TestJava t=new TestJava(depth);
            count = t.Count();

            float elapse = System.nanoTime() - start;
            elapse /= 1000000000;
            //System.out.println(String.format("ELAPSE=%f",elapse));
            if (min_time>elapse) min_time=elapse;
            if (max_time<elapse) max_time=elapse;
            avg_time += elapse;

        }
        avg_time /= reps;
        System.out.println(String.format("TestJava count=%d min=%f max=%f avg=%f",count,min_time,max_time,avg_time));
    }

    public TestJava(int depth) {
        if (depth>0) {
            depth-=1;
            child1=new TestJava(depth);
            child2=new TestJava(depth);
            child3=new TestJava(depth);
        }
    }
    public int Count() {
        int count=1;
        if (child1!=null) count+=child1.Count();
        if (child2!=null) count+=child2.Count();
        if (child3!=null) count+=child3.Count();
        return count;
    }
}