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. "3" is printed. "1" is printed. Compilation fails. An exception is thrown at runtime. "2" is printed. "3" is printed. "1" is printed. Compilation fails. An exception is thrown at runtime. ANSWER DOWNLOAD EXAMIANS APP
JAVA Strings 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)); }} false,true false,false None of these true,true true,false false,true false,false None of these true,true true,false 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 String str1 = "Kolkata".replace('k', 'a');In the above statement, the effect on string Kolkata is 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. The first occurrence of k is replaced by a. Displays error message 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); } } None of these Compilation error hellow9 Throws an exception as string and int are not compatible for addition 9hellow None of these Compilation error hellow9 Throws an exception as string and int are not compatible for addition 9hellow ANSWER DOWNLOAD EXAMIANS APP
JAVA Strings What will be output?String S1 = "S1 ="+ "123"+"456";String S2 = "S2 ="+(123+456); None of This S1=123456,S2=123456 S1=579,S2=579 S1=123456, S2=579 None of This S1=123456,S2=123456 S1=579,S2=579 S1=123456, S2=579 ANSWER DOWNLOAD EXAMIANS APP
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