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 two onetwo twoone TRUE ANSWER : ? YOUR ANSWER : ?
What will be the output of the following program?public class Test{ public static void main(String args[]){String s1 = "java";String s2 = "java";System.out.println(s1.equals(s2));System.out.println(s1 == s2); }} false true true true false false true false TRUE ANSWER : ? YOUR ANSWER : ?
toString() method is defined in java.lang.Object java.lang.util java.lang.String None of these TRUE ANSWER : ? YOUR ANSWER : ?
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"); } }} "1" is printed. "3" is printed. An exception is thrown at runtime. Compilation fails. "2" is printed. 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 : ?
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 None of these Compilation error 9hellow hellow9 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);}} Hello Compilation error Hellow Throws an exception None of these 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 : ?