################### ## Java / OOP ########################
1. Why String are immutable?2. Difference Between StringBuffer a…
package dsa.level1; import java.util.Scanner; public class DiamondPattern { public static void main(String[] args) …
package dsa.level1;
public class Pattern3 {
public static void main(String[] args) {
int n = 5;
int space = n-1;
…
public class Pattern1 { public static void main(String[] args) { Scanner sc = new Scanner(System.in); …
package dsa.level1;
public class PrimeFactorization {
public static void main(String[] args) {
int number = 1440;
for(in…
package dsa.level1; import java.util.Scanner; public class GcdLcm { public static void main(String[] args) { …