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JAVA Strings

JAVA Strings
What will be the output?String str1 = "abcde";System.out.println(str1.substring(1, 3));

abc
None of these
bcd
bc
abcd

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JAVA Strings
What could be output of the following fragment of code?public class Test{ public static void main(String args[]){ String x = "hellow";int y = 9;System.out.println(x += y); } }

Throws an exception as string and int are not compatible for addition
Compilation error
None of these
hellow9
9hellow

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JAVA Strings
String str1 = "Kolkata".replace('k', 'a');In the above statement, the effect on string Kolkata is

All characters k are replaced by a.
Displays error message
The first occurrence of k is replaced by a.
All characters a are replaced by k.

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JAVA Strings
How many objects will be created?String a = new String("Examveda");String b = new String("Examveda");String c = "Examveda";String d = "Examveda";

4
None of this
2
3

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JAVA Strings
The String method compareTo() returns

-1
false
true
an int value
1

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JAVA Strings
The class string belongs to ................. package.

java.applet
java.awt
java.lang
java.string

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