Question about JAVA Strings

Question

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");            }      }}

Accepted Answer

An exception is thrown at runtime.

Answer

Compilation fails.

Answer

"3" is printed.

Answer

"1" is printed.

Answer

"2" is printed.

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"); } }}

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. }

JAVA Strings
The output of the following fraction of code ispublic class Test{ public static void main(String args[]){ String s1 = new String("Hello");String s2 = new String("Hellow");System.out.println(s1 = s2);}}

JAVA Strings
What is the output of the following println statement?String str1 = "Hellow";System.out.println(str1.indexOf('t'));

JAVA Strings
The class string belongs to ................. package.

JAVA Strings
String str1 = "Kolkata".replace('k', 'a');In the above statement, the effect on string Kolkata is

JAVA Strings

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"); } }}

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. }

JAVA Strings The output of the following fraction of code ispublic class Test{ public static void main(String args[]){ String s1 = new String("Hello");String s2 = new String("Hellow");System.out.println(s1 = s2);}}

JAVA Strings What is the output of the following println statement?String str1 = "Hellow";System.out.println(str1.indexOf('t'));

JAVA Strings The class string belongs to ................. package.