JAVA Strings 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. 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. All characters k are replaced by a. 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); } } Throws an exception as string and int are not compatible for addition None of these hellow9 Compilation error 9hellow Throws an exception as string and int are not compatible for addition None of these hellow9 Compilation error 9hellow ANSWER DOWNLOAD EXAMIANS APP
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 two one twoone None of these onetwo two one twoone None of these 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. An exception is thrown at runtime. "1" is printed. "3" is printed. "2" is printed. Compilation fails. An exception is thrown at runtime. "1" is printed. "3" is printed. "2" is printed. ANSWER DOWNLOAD EXAMIANS APP
JAVA Strings What is the output of the following println statement?String str1 = "Hellow";System.out.println(str1.indexOf('t')); -1 false true 0 1 -1 false true 0 1 ANSWER DOWNLOAD EXAMIANS APP
JAVA Strings How many Constructor String class have? 11 13 7 2 None of this 11 13 7 2 None of this ANSWER DOWNLOAD EXAMIANS APP
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