String - Lab Exercise

String - Lab Exercise
Practice questions
    1)	Write a program of creating two string objects and using equals and give the output ?
    
    2)  Write a program to find the length of given string and concat,trim the string ? 
    
    3)  Write a program for reversing the given string and use the scanner type with stringbuffer 
    and stringbuilder in the same class ? 
    
    4)  Write a program for reversing the string given by user using a for-loop? 
    
    5)  Write a program to split given string and convert given string into string array by user input? 
    
    6)  Write a program for converting char[] to string by the user input?