class Solution {
public boolean detectCapitalUse(String word
) {
char[] a
=word
.toCharArray();
int upNums
=0,lowNums
=0;
for(int i
=0;i
<a
.length
;i
++){
if(a
[i
]<'a')
upNums
++;
else lowNums
++;
}
if(upNums
==a
.length
||lowNums
==a
.length
||(upNums
==1&&a
[0]<'a'))
return true;
else return false;
}
}
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