【Java每日一題】20161026

20161025問題解析請點擊今日問題下方的「【Java每日一題】20161026」查看

package Oct2016;

import java.util.Date;

public class Ques1026 {   
    public static void main(String[] args) {      
        boolean b1 = "String" instanceof Object;//1      
        boolean b2 = new String() instanceof String;//2      
        boolean b3 = 'A' instanceof Character;//3      
        boolean b4 = null instanceof String;//4      
        boolean b5 = (String)null instanceof String;//5      
        boolean b6 = new Date() instanceof String;//6   
    }
}

今日問題：
請問主程序哪些語句會有編譯錯誤？（點擊如下「【Java每日一題】20161026」查看20161025問題解析）

 

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