Kamal wants to display only the alphabets stored in a character array. While compiling the code, an error was displayed. Check for the statement with the error and write the correct statement.

char arr[]={'4', '&', 'a', 'w', 'd'}; 
int i; 
for(i=0;i<arr.length;i++) 
{ 
if(Character.isLetter(arr)) 
System.out.println(arr); 
}

Name the type of type casting in the given statements:

(a) double m = 'b';
(b) char ch = (char)68;

Mention the output of this code snippet:

int lives = 5; 
    System.out.println(lives--); 
    System.out.println(lives);

Convert the following for loop segment to an exit-controlled loop.

for(k = 10;k >= -1;k--) 
System.out.println(k*2); 
System.out.println(k*4);