= and ==

[Basu Patel]

//What is the result of executing the following fragment of code:

class _2{
public static void main(String []args){
boolean flag = false;
if (flag = true) {
System.out.println("true");
}
else {
System.out.println("false");
}
boolean flag1 = false;
if (flag1 == true) {
System.out.println("true");
}
else {
System.out.println("false");
}
}
}
what is the difference bet. = and == in the argument section of the if statement? what will the answer be.?

[swati bannore]

Hi,
In the first case (flag1=true) you are assinging "true" to flag1.So if condition will be always true and hence prints "TRUE".
In the second case ( flag1 == true) ,here you are comparing the value of flag1 ,which is assinged to false, so if condition will be flase and hence will print "False".
Correct if wrong
thanx

[Siobhan Murphy]

a = b;

reads as 'set a to b' or 'a becomes b', whereas

a == b;

reads as 'Does a denote the same obect as b?'
Hope this helps