String in Java - Quiz

Q: What could be the 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);
        } 
}

Q: Determine output:

public class Test{
        public static void main(String args[]){ 	
		String s1 = "SITHA";
		String s2 = "RAMA";
		System.out.println(s1.charAt(0) > s2.charAt(0));
        }
}

Q: 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);
        }
}

Q: 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));
        }
}

Q: What will be the output?

public class Test{ 
        public static void main (String[] args){ 
		String test = "a1b2c3"; 
                String[] tokens = test.split("\\d"); 
                for(String s: tokens) 
                        System.out.print(s); 
	} 
}

Q: The class string belongs to ................. package.

Q: What will be output?

String S1 = "S1 ="+ "123"+"456";
String S2 = "S2 ="+(123+456);

Q: 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));
      }
}

Q: 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. }

Q: 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");
            }
      }
}