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ȺÄÚһλÅàѵÀÏʦ·¢³öÀ´Ò»¸öÎÊÌâ:
int[][] a = new int[10][10];
ÕâÖÖ¶àάÊý×é»áÔÚÕ»ÉÏÉú³É¼¸¸ö¶ÔÏó?
Õâ¸öÎÊÌâÐÂÏÊ,ûÈËÎʹý.
·¢³öÀ´ºó ´ó¼Ò¶¼ÈÏΪÓм¸¸öÔªËØ ¾Í»áÉú³É¼¸¸ö¶ÔÏó.
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public static void main(String[] args) {
int[][] a = new int[10][10];
}
¸ù¾ÝclassÉú³ÉJVMÖ¸Áî:
public static void main(java.lang.String[]);
Code:
Stack=2, Locals=2, Args_size=1
0: bipush 10
2: bipush 10
4: multianewarray #2, 2; //class "[[I"
8: astore_1
9: return
LineNumberTable:
line 9: 0
line 25: 9
}
javapÊDz»Æ­È˵Ä.Ã÷Ã÷°×°×µÄд×ÅStack=2,Ò»¿´Õâ½á¹û,²»Ã÷²»°×,ÔÙ×ö¼¸¸öÀý×Ó¿´ÏÂ
public static void main(String[] args) {
int[][][][] a = new int[10][20][30][40];
}
¶ÔÓ¦JVMÔ´Âë:
public static void main(java.lang.String[]);
Code:
Stack=4, Locals=2, Args_size=1
0: bipush 10
2: bipush 20
4: bipush 30
6: bipush 40
8: multianewarray #2, 4; //class "[[[[I"
12: astore_1
13: return
LineNumberTable:
line 9: 0
line 25: 13
}
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ÔÙÊÔһϸ³ÖµÓë¶ÁÖµ
public static void main(String[] args) {
int[][][][] a = new int[10][20][30][40];
a[9][16][17][18] = 999;
}
¶ÔÓ¦JVMÔ´Âë:
public static void main(java.lang.String[]);
Code:
Stack=4, Locals=2, Args_size=1
0: bipush 10
2: bipush 20
4: bipush 30
6: bipush 40 //ËĸöÖµÈë²Ù×÷ÊýÕ»
8: multianewarray #2, 4; //class "[[[[I"
12: astore_1
13: aload_1 //°Ñ¸Õ²ÅnewµÄÊý×éµÄÄÚ´æµØÖ·ÈëÕ»¶¥
14: bipush 9 //½«Êý×éµÄµÚһάϱê9ÈëÕ»¶¥
16: aaload //¸ù¾ÝÕ»¶¥µÄϱê¶ÁÈ¡µ±Ç°Êý×éµÄÄÚ´æµØÖ·
17: bipush 16
19: aaload
20: bipush 17
22: aaload //¸ù¾ÝÕ»¶¥µÄϱê¶ÁÈ¡µ±Ç°Êý×éµÄÄÚ´æµØÖ·
23: bipush 18 //µÚËÄάϱêÈëÕ»
25: sipush 999 //½«Òª¸³µÄÖµÈëÕ»
28: iastore //½«Öµ ÉèÖýøµ±Ç°Ö¸ÏòµÄÊý×éÄÚ´æµØÖ·
29: return
LineNumberTable:
line 9:


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