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JAVA Strings

JAVA Strings
The String method compareTo() returns

true
-1
1
false
an int value

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JAVA Strings
toString() method is defined in

java.lang.String
java.lang.Object
None of these
java.lang.util

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JAVA Strings
Determine output:public class Test{ public static void main(String args[]){ String str = null; if(str.length() == 0){ System.out.print("1"); } else if(str == null){ System.out.print("2"); } else{ System.out.print("3"); } }}

"3" is printed.
"2" is printed.
An exception is thrown at runtime.
Compilation fails.
"1" is printed.

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

-1
1
false
0
true

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

onetwo
twoone
None of these
two
one

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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); }}

0
true
Displays error message
false
1

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