Write a java code to print following pattern

I
CC
SSS
EEEE

Solution:

class printABCD
{
     public static void main(String abc[])
     {
    char arr[]={'I','C','S','E'};   // Store alphabets in an array
        for(int i=0;i<4;i++)
        {                                
            for(int j=0;j<=i;j++)
              {
                System.out.print(arr[i]);              
              }
          System.out.println();
         }
     }
}

Write a java code to print following pattern

(a)
(a+b)
(a+b+c)
(a+b+c+d)


Solution:

//PrintABCD.java
class PrintABCD
{
public static void main(String abc[])
{
for(int i=1;i<10;i++) // increase count 10 to 27 to print till "z"
        {          
            String strChars="";  
            int alphabet=97;                          //ASCII value of A = 65 and a=97
            for(int j=1;j<=i;j++)
              {
                strChars=strChars+(char)alphabet + " + ";
                alphabet++;
              } 
          System.out.println("(" + strChars.substring(0,strChars.length()-3) + ")");
         }
     }
}