import java.util.*;
public class Main {
public static void main(String[] args) {
int i = 0;
// ο έλεγχος γίνεται προτού εκτελεστεί ο βρόχος
while (i < 10) {
i++;
System.out.print(" " + i);
} // 0 1 2 3 4 5 6 7 8 9
i = 0;
do {
System.out.print(" " + i++);
} while (i < 10);
// 0 1 2 3 4 5 6 7 8 9
for (i = 0; i < 10; i++) {
System.out.print(" " + i);
} //0 1 2 3 4 5 6 7 8 9
int sum = 0;
for (i = 1; i <= 10; i++) {
sum += i;
}
System.out.print(sum);
sum = 0;
i = 1;
while (i <= 10) {
sum += 1;
i++;
}
System.out.print(sum);
sum = 0;
i = 1;
do {
sum += 1;
i++;
} while (i <= 10);
System.out.print(sum);
for (i=0; i<10; i++) {
for (int j=0; j<10; j++) {
System.out.print(" " + (i+j));
}
System.out.println();
}
for (i=1; i<=5; i++) {
for (int j=4-i+1; j>0; j--) {
System.out.print(" ");
}
for (int j=1; j<=2*i-1; j++) {
System.out.print("*");
}
System.out.println(); // αλλαγή γραμμής
}
for (i = 9; i > 0; i--) {
if (i == 5) {
break;
}
System.out.print(" " + i);
}
for (i = 10; i > 0; i--) {
if (i % 2 != 0) {
continue;
}
System.out.print(" " + i);
}
}
}