BIT 2d semiya..

[inranasingha]

මේ ත්‍රෙඩය පටන් ගත්තේ BIT 2nd
සෙමිය කරන නංගිලා මල්ලිලා අක්කලා
අයියලා බාප්පලා පුංචි අම්මලාගේ ගැටළු වලට උත්තර හොයාගන්න...

එන්න අපි දැනුම බෙදා ගනිමු...
සබ්ජ්ක්ට් හතරෙම තියන ගැටළු මෙතනට පෝස්ට් කරන්න.....
මේ සතියෙ විතරක් මේ ත්‍රෙඩය උඩින්ම තියාගන්න බම්ප් එකක්වත් දාන්න..

​

 

[NipunaDDDD]

Mama Sem 2 Exam next week karanda inne.

Taru penila inne

 

[inranasingha]

Help plzzz
class Str{
public static void main(String args[]){
double value1 = 10000;
float value2 = 35.0f;
String str = String.valueOf(value1);
System.out.println(str + value2);
}
}


What would be the output of the program?

Choose at least one answer.
a. error
b. 10000
c. 35.0
d. 10035.0
e. 10000.035.0 Correct

 

[inranasingha]

Mama Sem 2 Exam next week karanda inne.

Taru penila inne

megeth PU@#@ puuttu welaa inne ban

 

[inranasingha]

Marks: 1/1
Consider the following program written in Java.

class Abc{
public static void main(String args[]){
String str1 = "Anuradhapura";
String str2 = "Anuradhapura";
System.out.print(str1.equals(str2));
}
}

What would be the output of the program?
Choose at least one answer.
a. error
b. false
c. true
d. Anuradhapura
e. Anu

 

[Lalakajee]

Help plzzz
class Str{
public static void main(String args[]){
double value1 = 10000;
float value2 = 35.0f;
String str = String.valueOf(value1);
System.out.println(str + value2);
}
}


What would be the output of the program?

Choose at least one answer.
a. error
b. 10000
c. 35.0
d. 10035.0
e. 10000.035.0 Correct

String str = String.valueOf(value1);

converts the value 10000 to a string, which is a double(so 10000 becomes 10000.0) in this case it is "10000.0" and stores it in the variable str.
In the System.out.println statement an addition is performed. with a string and a float.
So it simply adds these two like this

"10000.0"+35.0f

and returns

10000.035.0

 

[Lalakajee]

Marks: 1/1
Consider the following program written in Java.

class Abc{
public static void main(String args[]){
String str1 = "Anuradhapura";
String str2 = "Anuradhapura";
System.out.print(str1.equals(str2));
}
}

What would be the output of the program?
Choose at least one answer.
a. error
b. false
c. true
d. Anuradhapura
e. Anu

String equals method returns true or false based on the two string which it compares, in this case, "Anuradhapura" & "Anuradhapura" which is same.
So the answer is true.
But if they use == the return value is false since the == checks whether it references to the same object (memory space) which is wrong.
When a String variable is declared it always create a new object(which is a String object).
String objects cannot be changed, they are immutable.

 

[plusone]

Mathematics thamai awula...

 

[Leo_D]

prashna thibboth aniwaryen daanawa

 

[cvgdude]

math me para exam

 

[inranasingha]

converts the value 10000 to a string, which is a double(so 10000 becomes 10000.0) in this case it is "10000.0" and stores it in the variable str.
In the System.out.println statement an addition is performed. with a string and a float.
So it simply adds these two like this

and returns

Tx machanz​

 

[inranasingha]

String equals method returns true or false based on the two string which it compares, in this case, "Anuradhapura" & "Anuradhapura" which is same.
So the answer is true.
But if they use == the return value is false since the == checks whether it references to the same object (memory space) which is wrong.
When a String variable is declared it always create a new object(which is a String object).
String objects cannot be changed, they are immutable.

thuthi machan

 

[NipunaDDDD]

Mamanam danna widiyata liyala repeat karanda inne ban.

 

[helo256]

meewath prashnada yakoo.. CS degree ekak karala balapalla ...

 

[sheyan]

hmm

math meda sare dbms and maths amarui .........

 

[Leo_D]

public class test{
public static void main(String args[]){
boolean a=false;

System.out.println(a=a);
}
}

ai mekedi output eka false wenne?

 

[New Folder]

bump

 

[inranasingha]

public class test{
public static void main(String args[]){
boolean a=false;

System.out.println(a=a);
}
}

ai mekedi output eka false wenne?

= kiyanne assgnment oprator eka.
a=a;
left side eke thiyana eka variable eka...
right eke thiyana eke value eka a ta assgn karagannawa..
mulin declare karala thiyanawa..
eka false kiyala..
data type eka boolean
out put false..
== thibbanam equalda kiyala balala ehemanam true retun karanawa nethnam false..
a==a
oya daala balanna..
if any correction plz..
​

 

[Leo_D]

thanks

 

[inranasingha]

thanks