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单选题
为了使得System.out.println()输出对象引用的时候得到有意义的信息,我们应该覆盖Object中的哪个方法?()
A
equals
B
hashCode
C
toString
D
notify
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为了使得System.out.println()输出对象引用的时候得到有意义的信息,我们应该覆盖Object中的哪个方法?() A、 equalsB、 hashCodeC、 toStringD、 notify
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考题
单选题为了使得System.out.println()输出对象引用的时候得到有意义的信,我们应该覆盖Object t{-的哪个方法?()A
equalsB
toStringC
hashCodeD
notify
考题
单选题程序: class MyDate{ private int year; private int month; private int day; public MyDate(int year,int month,int day){ this.year=year; this.month=month; this.day=day; } //Override Method } 为了让new MyDate(1980,11,9)==new MyDate(1980,11,9) 返回true,必须在Override Method处覆盖哪个方法?()A
hashCodeB
equalsC
toStringD
notify
考题
单选题为了使得System.out.println()输出对象引用的时候得到有意义的信我们应该覆盖Objectt{-的哪个方法?()A
equalsB
toStringC
hashCodeD
notify
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