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. Displays error message All characters a are replaced by k. 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. The first occurrence of k is replaced by a. ANSWER DOWNLOAD EXAMIANS APP
JAVA Strings How many Constructor String class have? None of this 11 7 2 13 None of this 11 7 2 13 ANSWER DOWNLOAD EXAMIANS APP
JAVA Strings What will be output?String S1 = "S1 ="+ "123"+"456";String S2 = "S2 ="+(123+456); S1=123456, S2=579 S1=123456,S2=123456 None of This S1=579,S2=579 S1=123456, S2=579 S1=123456,S2=123456 None of This S1=579,S2=579 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. "2" is printed. An exception is thrown at runtime. "3" is printed. "1" is printed. Compilation fails. "2" is printed. An exception is thrown at runtime. "3" is printed. "1" 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')); true -1 false 1 0 true -1 false 1 0 ANSWER DOWNLOAD EXAMIANS APP
JAVA Strings What will be the output?String str1 = "abcde";System.out.println(str1.substring(1, 3)); bcd abcd abc None of these bc bcd abcd abc None of these bc ANSWER DOWNLOAD EXAMIANS APP
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