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JAVA Strings

JAVA Strings
What is the output of the following println statement?String str1 = "Hellow";System.out.println(str1.indexOf('t'));

true
false
-1
1
0

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JAVA Strings
What will be the output of the following program code?class LogicalCompare{ public static void main(String args[]){ String str1 = new String("OKAY"); String str2 = new String(str1); System.out.println(str1 == str2); }}

1
0
false
true
Displays error message

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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); } }

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

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JAVA Strings
What will be the output?public class Test{ public static void main (String[] args){ String test = "a1b2c3"; String[] tokens = test.split("\\d"); for(String s: tokens) System.out.print(s); } }

123
abc
Compilation error
Runtime exception thrown

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JAVA Strings
How many Constructor String class have?

None of this
2
11
7
13

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JAVA Strings
What will be output?String S1 = "S1 ="+ "123"+"456";String S2 = "S2 ="+(123+456);

S1=123456,S2=123456
None of This
S1=123456, S2=579
S1=579,S2=579

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