recursion method in java code example
Example 1: recursion in java
class scratch{
public static long factorial(int n){
if ( n == 1 ){
return 1;
}
else{
return n * factorial( n - 1 );
}
}
public static void main(String[] args) {
System.out.println( factorial(5) );
}
}
Example 2: java recursion
public static void recursion(int x) {
if(x == 0) {
System.out.println();
} else {
System.out.print("$");
recursion(x - 1);
}
}
Example 3: recursion in java
Recursion is a basic programming technique
you can use in Java, in which a method
calls itself to solve some problem.
A method that uses this technique
is recursive. Many programming problems
can be solved only by recursion,
and some problems that can be solved by
other techniques are better solved by recursion.
EXP-1: Factorial
public static long factorial(int n){
if (n == 1)
return 1;
else
return n * factorial(n-1);
}
EXP-2: Fibonacci
static int n1=1, n2=2, n3=0;
public static void printFibo(int count){
if (count > 0) {
n3 = n1 + n2;
n1 = n2;
n2 = n3;
System.out.print(" " + n3);
printFibo(count-1);
}
}