Java need help to understand the code

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public class Test {
int i;
int j;

public static void main(String[] args) {

Test t1 = new Test();
Test t2 = new Test();

t1.j=t2.i=5;
t1.i=t2.j=6;

System.out.print(t1.j++ + " " + t2.i--);

}
}

Posted 12-Nov-14 4:38am

Member 11228096

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Member 11228096 12-Nov-14 10:38am

Need help wrt the o/p of the above prgm ? when I compile it the answer is 5 5 . Need help in understanding how t1.j++ is 5

2 solutions

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OriginalGriff · Accepted Answer · 2014-11-12T04:48:00

Solution 1

Because x++ is what's called a "postfix" operator: it means "get the value of x and then increase x by one but do not affect the value you fetched earlier":

C#

int temp = x;
x = x + 1;
return temp;

Posted 12-Nov-14 4:48am

OriginalGriff

Richard MacCutchan · Accepted Answer · 2014-11-12T05:47:00

Solution 2

See https://docs.oracle.com/javase/tutorial/java/index.html[^], and work through it, all the answers can be found there.

Posted 12-Nov-14 5:47am

Richard MacCutchan