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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
abcd
bcd
bc

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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); } }

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

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JAVA Strings
The output of the following fraction of code ispublic class Test{ public static void main(String args[]){ String s1 = new String("Hello");String s2 = new String("Hellow");System.out.println(s1 = s2);}}

None of these
Throws an exception
Compilation error
Hellow
Hello

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JAVA Strings
What will be the output of the following program code?public class Test{ public static void main(String args[]){ String s = "what"; StringBuffer sb = new StringBuffer("what"); System.out.print(sb.equals(s)+","+s.equals(sb)); }}

None of these
true,false
true,true
false,true
false,false

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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
Runtime exception thrown
Compilation error
abc

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

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

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