Java bytecode: Difference between revisions

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Jython is a Python interpreter written in Java
add an example, which I think is not too long
Line 239:
 
''This list is incomplete.''
 
== Example ==
 
Consider the following Java code.
 
<code>
outter: for (int i = 2; i < 1000; i++) {
for (int j = 2; j < i; j++) {
if (i % j == 0)
continue outter;
}
System.out.println (i);
}
</code>
 
This is probably translated into byte code like (assuming the above was put in a method):
 
<code>
Code:
0: iconst_2
1: istore_1
2: iload_1
3: sipush 1000
6: if_icmpge 44
9: iconst_2
10: istore_2
11: iload_2
12: iload_1
13: if_icmpge 31
16: iload_1
17: iload_2
18: irem # remainder
19: ifne 25
22: goto 38
25: iinc 2, 1
28: goto 11
31: getstatic #84; //Field java/lang/System.out:Ljava/io/PrintStream;
34: iload_1
35: invokevirtual #85; //Method java/io/PrintStream.println:(I)V
38: iinc 1, 1
41: goto 2
44: return
</code>
 
==See also==