1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
from test_support import *
print_test('Subclassing Java from Python (test_jsubclass.py)', 1)
from java.lang import Runnable, Thread
# Overriding Methods
print_test('override methods', 2)
class MyThread(Thread):
count = 0
def run(self):
self.count = self.count+1
t1 = MyThread()
t1.start()
t1.join()
assert t1.count == 1, 'subclassing java.lang.Thread'
print_test('pass subclass back to java', 2)
class MyRun(Runnable):
count = 0
def run(self):
self.count = self.count+1
run = MyRun()
t = Thread(run)
t.start()
t.join()
assert run.count == 1, 'subclassing java.lang.Thread'
print_test("invoke super's constructor", 2)
class MyThread(Thread):
def __init__(self):
self.name = "Python-"+self.name
t = MyThread()
assert t.name[:14] == "Python-Thread-", 'automatic constructor call'
class MyThread(Thread):
def __init__(self):
Thread.__init__(self, "Python-Thread")
t = MyThread()
assert t.name == "Python-Thread", 'explicit constructor call'
|
