Java 比较三个整数是否相等的替代方法
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alternative way to compare if three ints are equal
提问by user3059427
int a = 10;
int b = 10;
int c = 10;
I am trying to find out if there is alternate way to compare if three ints or anything are equal.
我试图找出是否有替代方法来比较三个整数或任何东西是否相等。
The way i am currently doing is
我目前正在做的方式是
if( (a == b) && (a == c) && (b == c)){
}
I was wondering if there is an alternate and more concise way to do this.
我想知道是否有另一种更简洁的方法来做到这一点。
采纳答案by rgettman
Equality is transitive; you don't need the last comparison b == c. If a == band a == c, then b == c.
平等是可传递的；你不需要最后的比较b == c。如果a == b和a == c，那么b == c。
Try
尝试
if ((a == b) && (a == c)){
回答by PM 77-1
If all you need is to know whether three are equal then you can use:
如果您只需要知道三个是否相等，那么您可以使用：
if ((a==b) && (b==c)) {
}
回答by I?ya Bursov
alternative variant:
替代变体：
int t1 = a-b;
int t2 = c-b;
if ( (t1|t2) == 0 ) // both are equal
