Pattern Programs
* * * * * * * * * * * * * * *
SOLUTION :
class Test {
public static void main(String[] a)
{
for(int i = 1; i<=5; i++) {
for(int j = 1; j<=i; j++) {
System.out.print("*");
}
System.out.println();
}
}
}
*
* *
* * *
* * * *
* * * * *
SOLUTION :
class Test {
public static void main(String[] a)
{
for(int i = 1; i<=5; i++) {
for(int j = 5; j>=i; j--) {
System.out.print(" ");
}
for(int k = 1; k<=i; k++) {
System.out.print("* ");
}
System.out.println();
}
}
}
A A B A B C A B C D A B C D E
SOLUTION :
class Test {
public static void main(String[] a)
{
for(char i = 'A'; i<='E'; i++) {
for(char j = 'A'; j<=i; j++) {
System.out.print(j+" ");
}
System.out.println();
}
}
}
1
121
12321
1234321
SOLUTION :
class Test {
public static void main(String[] a)
{
for(int i = 1; i<=4; i++) {
for(int j = 3; j>=i; j--) {
System.out.print(" ");
}
for(int k = 1; k<=i; k++) {
System.out.print(k);
}
for(int m = i-1; m>=1;m--) {
System.out.print(m);
}
System.out.println();
}
}
}
1 21 123 4321 12345
SOLUTION :
class Test {
public static void main(String[] a)
{
for(int i = 1; i<=5; i++) {
if(i%2==0){
for(int j = 1; j<=i; j++) {
System.out.print(j);
}
}
else {
for(int j = i; j>=1; j--) {
System.out.print(j);
}
}
System.out.println();
}
}
}
1234321
12321
121
1
SOLUTION :
class Test {
public static void main(String[] a)
{
for(int i =1; i<=4; i++) {
for(int j =1; j < i;j++) {
System.out.print(" ");
}
for(int j = 1; j<=5-i; j++) {
System.out.print(j);
}
for(int k = 4-i;k>=1; k--) {
System.out.print(k);
}
System.out.println();
}
}
}
*
* * *
* * * * *
* * *
*
SOLUTION :
import java.util.Scanner;
class Test {
public static void main(String[] a)
{
Scanner s=new Scanner(System.in);
System.out.print("Enter a Num: ");
int n = s.nextInt();
for(int i = 1; i<=n; i++) {
for(int j = 0; j< n-i; j++) {
System.out.print(" ");
}
for(int k=0; k< (2*i)-1; k++) {
System.out.print("*");
}
System.out.println();
}
for(int i = 1; i< n;i++) {
for(int j = 0; j< i; j++) {
System.out.print(" ");
}
for(int k=0; k< 2*(n-i)-1; k++){
System.out.print("*");
}
System.out.println();
}
}
}
0 1 0 0 1 0 1 0 1 0 0 1 0 1 0
SOLUTION :
class Test {
public static void main(String[] a)
{
for(int i = 0; i<=4; i++) {
for(int j = 0; j<=i; j++) {
System.out.print((i+j)%2+" ");
}
System.out.println();
}
}
}
2 4 6 8 10 12
SOLUTION :
class Test {
public static void main(String[] a)
{
int k = 1;
for(int i = 1; i< 4; i++) {
for(int j = 1; j<=i; j++) {
System.out.print((2*k)+" ");
k++;
}
System.out.println();
}
}
}
1 3 3 5 5 5 7 7 7 7
SOLUTION :
class Test {
public static void main(String[] a)
{
int k = 1;
for(int i = 0; i< 4; i++) {
for(int j = 0; j<=i; j++) {
System.out.print((2*i+1)+" ");
}
System.out.println();
}
}
}
1 2 3 4 5 6 7 8 9 10
SOLUTION :
class Test {
public static void main(String[] a)
{
int k = 1;
for(int i = 1; i<= 4; i++) {
for(int j = 1; j<=i; j++) {
System.out.print(k+" ");
k++;
}
System.out.println();
}
}
}
1 1 1 1 2 1 1 3 3 1
SOLUTION :
class Test {
int fact(int x) {
int res = 1;
for(int i = 1; i < x; i++) {
res = res*i;
}
return res;
}
void show() {
int y;
for(int i=0; i<=5; i++) {
for(int c = 0; c<=(5-i-2); c++) {
System.out.print(" ");
}
for(int c =0; c<= i; c++) {
y =fact(i)/(fact(c)*fact(i-c));
System.out.print(y+" ");
}
System.out.println();
}
}
public static void main(String[] a)
{
Test t = new Test();
t.show();
}
}
