warning:deprecated conversion from string constant to ‘char *’ 解决方案
#include <iostream>
using namespace std;int fuc(char *a)
{cout << a << endl;
}
int main()
{fuc("hello");
}
Linux 环境下当GCC版本比较高时&…
一、原题 Which three statements are true regarding the data types in Oracle Database 10g/11g? (Choose three.) A. Only one LONG column can be used per table. B. A TIMESTAMP data type column stores only time values with fractional seconds. C. The BLOB data …
一、原题 Examine the structure proposed for the TRANSACTIONS table: name Null Type TRANS_ID NOT NULL NUMBER(6) CUST_NAME NOT NULL VARCHAR2(20) CUST_STATUS NOT NULL CHAR TRANS_DATE …
String & char
String to char
String.toCharArray();//return char[]
String.charAt(index);//return charchar to String
String s String.valueOf(c);
String s String.valueOf(new char[] {c,h,i,n,a});