What is a string and how does it work?

#1

what is a string and how does it work?
syso(10 + 20 + “hello” + 10 + 20);
ans= 30hello1020
unable to understand.

#2

Hey @rahulkumar0116 Take into consideration the example given : syso(10 + 20 + “hello” + 10 + 20);
first as we can see 10 is int(No problem) then we see 20 is also int so added up int + int and the result should be int. Now “Hello” is a string and string datatype size(32bytes) is more than int datatype size(4 bytes) so we are adding int + string and size of string greater than int therefore overall expression becomes a string hence it becomes “30Hello”. Now we are adding 10 but String + int will be string therefore “30Hello” + 10 becomes “30Hello10” now again we are adding 20 to string therefore “30Hello10” + 20 = “30hello1020”. Remeber JVM goes from left to right.

#3

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