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)); }} one onetwo None of these twoone two one onetwo None of these twoone two 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); } } 9hellow None of these hellow9 Compilation error Throws an exception as string and int are not compatible for addition 9hellow None of these hellow9 Compilation error Throws an exception as string and int are not compatible for addition 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"); } }} "2" is printed. "1" is printed. "3" is printed. An exception is thrown at runtime. Compilation fails. "2" is printed. "1" is printed. "3" is printed. An exception is thrown at runtime. Compilation fails. ANSWER DOWNLOAD EXAMIANS APP
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. All characters a are replaced by k. Displays error message The first occurrence of k is replaced by a. All characters k are replaced by a. All characters a are replaced by k. Displays error message The first occurrence of k is replaced by a. ANSWER DOWNLOAD EXAMIANS APP
JAVA Strings 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); }} true false Displays error message 1 0 true false Displays error message 1 0 ANSWER DOWNLOAD EXAMIANS APP
JAVA Strings The String method compareTo() returns false 1 -1 true an int value false 1 -1 true an int value ANSWER DOWNLOAD EXAMIANS APP
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