I’ve included a list of some of the Java programs below. You may also view all of the Java programs on our mobile app. I strongly advise you to use our mobile app for a better experience.
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21. Write a program to display following pattern .
1
1 0
1 0 1
1 0 1 0
1 0 1 0 1 ,
import java.util.Scanner;
class Patterns {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("How many rows do you want this pattern to have?");
int row = sc.nextInt();
for (int i = 1; i < = 5; i++) {
for (int j = 1; j < =i ; j++) {
System.out.print(j%2);
}
System.out.println();
}
}
}
22. Write a program to display following pattern.
1 0 1 0 1
1 0 1 0
1 0 1
1 0
1 ,
import java.util.Scanner;
class Patterns {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("How many rows do you want this pattern to have?");
int row = sc.nextInt();
for (int i = 1; i < = 5; i++) {
for (int j = 5; j >=i ; j--) {
System.out.print(j%2);
}
System.out.println();
}
}
23. Write a program to display following pattern.
1
0 1
1 0 1
0 1 0 1
1 0 1 0 1 ,
import java.util.Scanner;
class Patterns {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("How many rows do you want this pattern to have?");
int row = sc.nextInt();
for (int i = 1; i < = 5; i++) {
for (int j = i; j >=1 ; j--) {
System.out.print(j%2);
}
System.out.println();
}
}
}
24. Write a program to display following pattern.
1 2 3 4 5
2 4 6 8 10
3 6 9 12 15
4 8 12 16 20
5 10 15 20 25 ,
import java.util.Scanner;
class Patterns {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("How many rows do you want this pattern to have?");
int row = sc.nextInt();
for (int i = 1; i < = 5; i++) {
for (int j = 1; j < =5 ; j++) {
System.out.print(i*j);
}
System.out.println();
}
}
}
25. Write a program to display following pattern.
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4 5 6 7
1 2 3 4 5 6
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1 ,
import java.util.Scanner;
public class Pattern
{
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
System.out.println("How many rows do you want this pattern to have?");
int row = sc.nextInt();
for (int i = 1; i < = row; i++)
{
for (int j = 1; j < = i; j++)
{
System.out.print(j+" ");
}
System.out.println();
}
for (int i = row-1; i >= 1; i--)
{
for (int j = 1; j < = i; j++)
{
System.out.print(j+" ");
}
System.out.println();
}
sc.close();
}
}
26. Write a program to display following pattern .
1
1 2 1
1 2 3 2 1
1 2 3 4 3 2 1
1 2 3 4 5 4 3 2 1
1 2 3 4 5 6 5 4 3 2 1
1 2 3 4 5 6 7 6 5 4 3 2 1 ,
import java.util.Scanner;
public class Pattern
{
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
System.out.println("How many rows do you want this pattern to have?");
int rows = sc.nextInt();
for (int i = 1; i < = rows; i++)
{
for (int j = 1; j < = i; j++)
{
System.out.print(j+" ");
}
for (int j = i-1; j >= 1; j--)
{
System.out.print(j+" ");
}
System.out.println();
}
sc.close();
}
}
27. Write a program to display following pattern.
1 2 3 4 5 6 7
1 2 3 4 5 6
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4 5 6
1 2 3 4 5 6 7 ,
import java.util.Scanner;
public class Pattern
{
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
System.out.println("How many rows do you want this pattern to have?");
int rows = sc.nextInt();
for (int i = rows; i >= 1; i--)
{
for (int j = 1; j < = i; j++)
{
System.out.print(j+" ");
}
System.out.println();
}
for (int i = 2; i < = rows; i++)
{
for (int j = 1; j < = i; j++)
{
System.out.print(j+" ");
}
System.out.println();
}
sc.close();
}
}
28. Write a program to display following pattern.
1234567
234567
34567
4567
567
67
7
67
567
4567
34567
234567
1234567 ,
import java.util.Scanner;
public class Pattern
{
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
System.out.println("How many rows do you want this pattern to have?");
int rows = sc.nextInt();
for (int i = 1; i < = rows; i++)
{
for (int j = 1; j < i; j++)
{
System.out.print(" ");
}
for (int j = i; j < = rows; j++)
{
System.out.print(j+" ");
}
System.out.println();
}
for (int i = rows-1; i >= 1; i--)
{
for (int j = 1; j < i; j++)
{
System.out.print(" ");
}
for (int j = i; j < = rows; j++)
{
System.out.print(j+" ");
}
System.out.println();
}
sc.close();
}
}
29. Write a program to display following pattern.
1
2 1
3 2 1
4 3 2 1
5 4 3 2 1
6 5 4 3 2 1
7 6 5 4 3 2 1 ,
import java.util.Scanner;
public class Pattern
{
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
System.out.println("How many rows do you want this pattern to have?");
int rows = sc.nextInt();
for (int i = 1; i < = rows; i++)
{
for (int j = i; j >= 1; j--)
{
System.out.print(j+" ");
}
System.out.println();
}
sc.close();
}
}
30. Write a program to display following pattern.
1 2 3 4 5 6 7
2 3 4 5 6 7
3 4 5 6 7
4 5 6 7
5 6 7
6 7
7
6 7
5 6 7
4 5 6 7
3 4 5 6 7
2 3 4 5 6 7
1 2 3 4 5 6 7
import java.util.Scanner;
public class Pattern
{
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
System.out.println("How many rows do you want this pattern to have?");
int rows = sc.nextInt();
for (int i = 1; i < = rows; i++)
{
for (int j = 1; j < i; j++)
{
System.out.print(" ");
}
for (int j = i; j < = rows; j++)
{
System.out.print(j+" ");
}
System.out.println();
}
for (int i = rows-1; i >= 1; i--)
{
for (int j = 1; j < i; j++)
{
System.out.print(" ");
}
for (int j = i; j < = rows; j++)
{
System.out.print(j+" ");
}
System.out.println();
}
sc.close();
}
}