Java开发网 - 问题 (evaluation order)

Topic: 问题 (evaluation order)

1.问题 (evaluation order)	Copy to clipboard
Posted by: xiaopan Posted on: 2003-03-18 15:17 int[] a = {4,4}; int b =1; a[b] = b =0; 结果数组a 为什么植，为什么？

2.Re:问题 [Re: xiaopan]	Copy to clipboard
Posted by: snowbug Posted on: 2003-03-18 23:16 It's a very good question. It has something to do with the expression evaluation order of the JVM. According to the JVM specification, the order of the evaluation is from the left to the right, so the line: a[b] = b = 0; evaluates to: a[1] = (b = 0); so the array will be: {4, 0}.

3.Re:问题 [Re: snowbug]	Copy to clipboard
Posted by: mitnickcbc Posted on: 2003-03-18 23:45 snowbug wrote: It's a very good question. It has something to do with the expression evaluation order of the JVM. According to the JVM specification, the order of the evaluation is from the left to the right, so the line: a = b = 0; evaluates to: a[1] = (b = 0); so the array will be: {4, 0}. I tested it, you are right.