Q #1) Write a Java Program to reverse a string without using String inbuilt function reverse().
class ReverseStringWithoutFunction
{
public static void main(String… s)
{
String st1="TEST1";
char ch[]=st1.toCharArray(); // convert string in to char type array
/* char[] = String.toCharArray() method return a char[] array */
for(int i=(ch.length-1);i>=0;i--) //start loop char[] type array length and -1 because loop start position 0
{
System.out.print(ch[i]);
}
}
}
Result :- 1TSET
