StringBuffer sb = new StringBuffer("张三");上述代码是否会报错?______ (是或否)
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StringBuffer sb = new StringBuffer( );上述代码是否会报错?______ (是或否)
StringBuffer sb = "张三";上述代码是否会报错?______ (是或否)
String s = new String("");上述代码是否会报错?______ (是或否)
String s = "张三";上述代码是否会报错?______ (是或否)