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1.Êý×é 2.Iterator µü´úÆ÷
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1,Êý×éFOR±È½Ï
a,һάÊý×éµÄ±È½Ï
´«Í³For :
int arr[]={1,2,3,4,5,6};
for(int i=0;i<arr.length;i++){
System.out.println(arr[i]);
}
ÔöÇ¿For :
for(int i:arr){
System.out.println(i);
}
¶þάÊý×飺
int arr[][]{{1,2,3},{4,5,6},{3,7}};
´«Í³ For ://¸Ð¾õºÃ·±ËöŶ
for(int i=0;i<arr.length;i++){
for(int j=0;j<arr[i].length;j++){
System.out.println( arr3[i][j]);
}
System.out.println();
}
ÔöÇ¿For ://ºÜ¼ò½à°É
for(int a31[]:arr3){
for(int a32:a31){
System.out.println(a32);
}
System.out.println();
}
2.List¼¯ºÏµÄʹÓÃIterator ʹÓÃ
List <String>list =new ArratList<String>();
list.add("ÄãºÃ");
list.add("ÄãÊÇ£¿");
list.add("ÎÒ");
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for(int i=0;i<list.size();i++){
System.out.println(list.get(i));
}
Iterator :
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for(Iterator it=list.iterator();lt.hasNext();){
System.out.println(it.getNext());
}
ÔöÇ¿For:
for(String list:list){
System.out.println(list);
}
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{
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// ðÅÝÅÅÐòº¯Êý1
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int position,scan;
Comparable temp;
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