TestJava.java

public class TestJava {
    public TestJava child1;
    public TestJava child2;
    public TestJava child3;

    public static void main(String[] args) {
        if (args.length<3) {
            System.out.println("TestJava <depth> <reps> <gc>");
            return;
        }
        int depth=Integer.parseInt(args[0]);
        int reps=Integer.parseInt(args[1]);
        int gc=Integer.parseInt(args[2]);
        System.out.println("TestJava started depth="+depth+" reps="+reps+" gc="+gc);
        int count=0;
        for(int rep=0; rep<reps; rep++) {
            TestJava t=new TestJava(depth);
            count = t.Count();
            t = null;
            if (gc>0) {
                System.gc();
            }

        }
        System.out.println(String.format("TestJava count=%d",count));
    }

    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;
    }
}