The class string belongs to ................. package. java.string java.applet java.awt java.lang TRUE ANSWER : ? YOUR ANSWER : ?
String str1 = "Kolkata".replace('k', 'a');In the above statement, the effect on string Kolkata is The first occurrence of k is replaced by a. All characters k are replaced by a. Displays error message All characters a are replaced by k. TRUE ANSWER : ? YOUR ANSWER : ?
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)); }} None of these one onetwo two twoone TRUE ANSWER : ? YOUR ANSWER : ?
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); }} Displays error message true 1 0 false TRUE ANSWER : ? YOUR ANSWER : ?
What will be the output?1. public class Test{2. public static void main(String args[]){3. Object myObj = new String[]{"one", "two", "three"};4. {5. for(String s : (String[])myObj) 6. System.out.print(s + ".");7. }8. }9. } None of these Compilation fails because of an error at line 5 An exception is thrown at runtime. Compilation fails because of an error at line 3 one.two.three. TRUE ANSWER : ? YOUR ANSWER : ?
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)); }} true,true true,false false,false None of these false,true TRUE ANSWER : ? YOUR ANSWER : ?
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);}} Hellow None of these Hello Throws an exception Compilation error TRUE ANSWER : ? YOUR ANSWER : ?
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); } } 9hellow hellow9 None of these Throws an exception as string and int are not compatible for addition Compilation error TRUE ANSWER : ? YOUR ANSWER : ?
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); } } Runtime exception thrown Compilation error 123 abc TRUE ANSWER : ? YOUR ANSWER : ?