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public static void main(String[] args) throws Exception{
String[] strs = {"str_0", "str_1", "str_2", "str_3", "str_4", "str_5", "str_6", "str_7", "str_8", "str_9"};
String[] strings = reverse(strs);
for (int i = 0; i < strings.length; i++) {
System.out.println(strings[i]);
}
}
private static String[] reverse(String[] strs) {
// TODO Auto-generated method stub
if (strs.length < 1) {
return strs;
}
String tmp = "";
for(int i=0; i<strs.length; i+=2){
tmp = strs[i];
strs[i]=strs[i+1];
strs[i+1] = tmp;
}
return strs;
}
打印结果:
str_1
str_0
str_3
str_2
str_5
str_4
str_7
str_6
str_9
str_8