We can print different pattern shapes using for loop in java programming.
package com.sample.java.testing;
public class PrintPatternTest {
public static void main(String[] args) {
//================================
for (int j = 0; j < 9; j++) {
for(int k =0; k <= j; k++){
System.out.print("*");
}
System.out.println("");
}
*
**
***
****
*****
******
*******
********
*********
**********
//===============================
for (int j = 9; j >= 0; j--) {
for(int k =0; k <= j; k++){
System.out.print("*");
}
System.out.println("");
}
*********
********
*******
******
*****
****
***
**
*
//---------------------------------------------------
for (int j = 1; j < 9; j++) {
for(int k =1; k <= j; k++){
System.out.print(k);
}
System.out.println("");
}
1
12
123
1234
12345
123456
1234567
12345678
//------------------------------------
for (int j = 9; j > 0; j--) {
for(int k =2; k <= j; k++){
System.out.print(k-1);
}
System.out.println("");
}
12345678
1234567
123456
12345
1234
123
12
1
//============================
int startNumber = 1;
for (int j = 0; j < 9; j++) {
for(int k =0; k <= j; k++){
System.out.print(startNumber + " ");
startNumber = startNumber + 1;
}
System.out.println("");
}
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31 32 33 34 35 36
37 38 39 40 41 42 43 44 45
//======================
int space = 9;
for (int j = 0; j < 9; j++) {
for(int k =0; k <= space; k++){
System.out.print(" ");
}
space = space - 1;
for (int i = 0; i < j+1; i++) {
System.out.print("*");
}
System.out.println("");
}
*
**
***
****
*****
******
*******
********
*********
//------------------------------------------
int space1 = 9;
for (int j = 0; j < 9; j++) {
for(int k =0; k <= space1; k++){
System.out.print(" ");
}
space1 = space1 - 1;
for (int i = 0; i < j+1; i++) {
System.out.print("* ");
}
System.out.println("");
}
}
}
*
* *
* * *
* * * *
* * * * *
* * * * * *
* * * * * * *
* * * * * * * *
* * * * * * * * *
package com.sample.java.testing;
public class PrintPatternTest {
public static void main(String[] args) {
//================================
for (int j = 0; j < 9; j++) {
for(int k =0; k <= j; k++){
System.out.print("*");
}
System.out.println("");
}
*
**
***
****
*****
******
*******
********
*********
**********
//===============================
for (int j = 9; j >= 0; j--) {
for(int k =0; k <= j; k++){
System.out.print("*");
}
System.out.println("");
}
*********
********
*******
******
*****
****
***
**
*
//---------------------------------------------------
for (int j = 1; j < 9; j++) {
for(int k =1; k <= j; k++){
System.out.print(k);
}
System.out.println("");
}
1
12
123
1234
12345
123456
1234567
12345678
//------------------------------------
for (int j = 9; j > 0; j--) {
for(int k =2; k <= j; k++){
System.out.print(k-1);
}
System.out.println("");
}
12345678
1234567
123456
12345
1234
123
12
1
//============================
int startNumber = 1;
for (int j = 0; j < 9; j++) {
for(int k =0; k <= j; k++){
System.out.print(startNumber + " ");
startNumber = startNumber + 1;
}
System.out.println("");
}
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31 32 33 34 35 36
37 38 39 40 41 42 43 44 45
//======================
int space = 9;
for (int j = 0; j < 9; j++) {
for(int k =0; k <= space; k++){
System.out.print(" ");
}
space = space - 1;
for (int i = 0; i < j+1; i++) {
System.out.print("*");
}
System.out.println("");
}
*
**
***
****
*****
******
*******
********
*********
//------------------------------------------
int space1 = 9;
for (int j = 0; j < 9; j++) {
for(int k =0; k <= space1; k++){
System.out.print(" ");
}
space1 = space1 - 1;
for (int i = 0; i < j+1; i++) {
System.out.print("* ");
}
System.out.println("");
}
}
}
*
* *
* * *
* * * *
* * * * *
* * * * * *
* * * * * * *
* * * * * * * *
* * * * * * * * *
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