What does ? do in java

Question

I have seen some code with a ? in a for loop and I don't know what the ? does. Can someone explain. Thanks.

Answer 1

?: is ternary oprator
If you have some condition and you want find what is true or false
Than use it ternary oprator
For Example :
a=10 ,b=5;
If you use if else statment
if(a > b)
Print(true);
else
Print(false);
And if you use ternary oprator
Print(a>b?true:false);

Answer 2

The conditional operator, ? : , is a shorthand for an if-then-else construction that does one of two different things depending upon the result of a boolean expression.

The expression:

variable = booleanExpr ? value1 : value2;

has the same effect as:

if (booleanExpr) {
variable = value1;
} else {
variable = value2;
}

• The conditional operator is also sometimes called the 'ternary operator' or the 'question-colon operator'.

For example, in the expression:

isHungry() ? eat() : beMerry();

isHungry() will be evaluated first. If it evaluates to 'true' , eat() will be evaluated and beMerry() will not. Otherwise, beMerry() will be evaluated and eat() will not.

Answer 3

J 12323123
( ? )  Check the options where result equals "foo"

  □  result = 2 > 4 ? "foo" : "bar";

  □  result = 2 < 4 ? "foo" : "bar";

  □  result = 2 > 4 ? "bar" : "foo";

  ► NOTE: that Java, in a manner similar to C#, only evaluates the used expression and will not evaluate the unused expression.

Answer 4

? : is the ternary operator

a = b ? c : d

is equivalent to

if(b)
a = c;
else
a = d;

x ? y : z ==> if x is true, do y, else z

Answer 5

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https://www.sololearn.com/Discuss/610534/?ref=app
https://www.sololearn.com/Discuss/787502/?ref=app
https://www.sololearn.com/Discuss/535721/?ref=app

Answer 6

System.out.println(true?true:false);

//is equivalent to

if(true){System.out.println(true);}
else{System.out.println(false);}

Answer 7

Speedy response!

Answer 8

int max(int x, int y) {
return x>y ? x : y;
}

Answer 9

wao great reply