Collections(Java)-Comparable example program

 import java.lang.Comparable;  
 public class ComparableDemo {  
      public static void main(String[] args) {  
           String str1="Comparable";  
           String Str2="Comparator";  
           int value=str1.compareTo(Str2);  
           if(value==0){  
                System.out.println("Strings are equal");  
           }  
           else{  
                System.out.println("Strings are not equal");  
           }  
           Integer obj1=new Integer("37");  
           Integer obj2=new Integer("38");  
           int retValue=obj1.compareTo(obj2);  
           if(retValue>0){  
                System.out.println("Obj1 is greater than obj2");  
           }else if(retValue<0){  
                System.out.println("Obj1 is less than obj2");  
           }  
           else{  
                System.out.println("Obj1 and Obj2 are equal");  
           }  
      }  
 }  

Output:
Strings are not equal
Obj1 is less than obj2