Strings
practice.

String str1 = "Kolkata".replace('k', 'a');

In the above statement, the effect on string Kolkata is

The class string belongs to ................. package.

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); 
	} 
}

How many objects will be created?

String a = new String("Examveda");
String b = new String("Examveda");
String c = "Examveda";
String d = "Examveda";

How many Constructor String class have?

What will be output?

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

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));
      }
}

What will be the output?

public class Test{
     public static void main(String args[]){
           Object myObj = new String[]{"one", "two", "three"};
           {
          for(String s : (String[])myObj) 
	        System.out.print(s + ".");
         }
     }
}

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");
            }
      }
}

Which of these methods is used to compare a specific region inside a string with another specific region in another string?

What will be the output of the following Java code?

class output 
{
    public static void main(String args[])
    { 
       StringBuffer s1 = new StringBuffer("Hello");
       s1.insert(1,"Java");
       System.out.println(s1);
    }
}

What will be the output of the following Java code?

class output 
{
    public static void main(String args[])
    { 
       String c = "Hello i love java";
       boolean var;
       var = c.startsWith("hello");
       System.out.println(var);
    }
}

Which of these data type value is returned by equals() method of String class?

Which of the following are incorrect form of StringBuffer class constructor?

What will be the output of the following Java program?

class output 
{
    public static void main(String args[])
    { 
       String c = "  Hello World  ";
       String s = c.trim();
       System.out.println("\""+s+"\"");
    }
}

Which of the following statement is correct?

What will be the output of the following Java program?

class output 
{
    public static void main(String args[])
    {
        String a = "hello i love java";
        System.out.println(a.indexOf('e')+" "+a.indexOf('a')+" "+a.lastIndexOf('l')+" "+a.lastIndexOf('v'));
    }
}

Which of these class is used to create an object whose character sequence is mutable?

Which of these methods can be used to convert all characters in a String into a character array?

What will be the output of the following Java code?

class output 
{
    public static void main(String args[])
    { 
       String s1 = "Hello i love java";
       String s2 = new String(s1);
       System.out.println((s1 == s2) + " " + s1.equals(s2));
    }
}