关于JAVA的题1.关于字符串,下列语句不正确的是________A.String s = new String(”Olympic game”);B.“Welcome to Guangzhou”.indexOf(‘o’); C.String s = “Great Wall”; s.delete(2,5);D.StringBuffer buffer = new StringBuffer(); b

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关于JAVA的题1.关于字符串,下列语句不正确的是________A.String s = new String(”Olympic game”);B.“Welcome to Guangzhou”.indexOf(‘o’); C.String s = “Great Wall”; s.delete(2,5);D.StringBuffer buffer = new StringBuffer(); b
关于JAVA的题
1.关于字符串,下列语句不正确的是________
A.String s = new String(”Olympic game”);
B.“Welcome to Guangzhou”.indexOf(‘o’);
C.String s = “Great Wall”; s.delete(2,5);
D.StringBuffer buffer = new StringBuffer(); buffer.append(“China”);
请问选什么和原因是?