JAVA Strings String str1 = "Kolkata".replace('k', 'a');In the above statement, the effect on string Kolkata is All characters k are replaced by a. The first occurrence of k is replaced by a. Displays error message All characters a are replaced by k. All characters k are replaced by a. The first occurrence of k is replaced by a. Displays error message All characters a are replaced by k. ANSWER DOWNLOAD EXAMIANS APP
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"); } }} Compilation fails. "3" is printed. "1" is printed. An exception is thrown at runtime. "2" is printed. Compilation fails. "3" is printed. "1" is printed. An exception is thrown at runtime. "2" is printed. ANSWER DOWNLOAD EXAMIANS APP
JAVA Strings 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. } one.two.three. An exception is thrown at runtime. Compilation fails because of an error at line 3 None of these Compilation fails because of an error at line 5 one.two.three. An exception is thrown at runtime. Compilation fails because of an error at line 3 None of these Compilation fails because of an error at line 5 ANSWER DOWNLOAD EXAMIANS APP
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 9hellow hellow9 None of these Compilation error Throws an exception as string and int are not compatible for addition 9hellow hellow9 None of these ANSWER DOWNLOAD EXAMIANS APP
JAVA Strings What will be the output?String str1 = "abcde";System.out.println(str1.substring(1, 3)); abc bcd abcd None of these bc abc bcd abcd None of these bc ANSWER DOWNLOAD EXAMIANS APP
JAVA Strings The String method compareTo() returns 1 true -1 an int value false 1 true -1 an int value false ANSWER DOWNLOAD EXAMIANS APP
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