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GeezerVison is showing github.com — Java_Learning/12_Patterns/AdvancedPattern2.java at main · TORRYNN/Java_Learning

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AdvancedPattern2.java

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public class AdvancedPattern2 {
public static void main(String[] args) {
int n = 5;
System.out.println("---------------------------- Pattern1 ----------------------------");
// *
// **
// ***
// ****
// *****
// ****
// ***
// **
// *
String pattern[] = new String[2 * n - 1];
for (int i = 1; i < 2 * n; i++) {
StringBuilder row = new StringBuilder();
int breakpoint = i;
if (i > n)
breakpoint = 2 * n - i;
for (int j = 1; j < breakpoint; j++) {
row.append(" ");
}
for (int j = 0; j < breakpoint; j++) {
row.append("*");
}
pattern[i - 1] = row.toString();
}
for (String row : pattern) {
System.out.println(row);
}
System.out.println("---------------------------- Pattern2 ----------------------------");
// 1 2 3 4 5
// 2 3 4 5
// 3 4 5
// 4 5
// 5
// 4 5
// 3 4 5
// 2 3 4 5
// 1 2 3 4 5
for (int i = 1; i <= n; i++) {
for (int j = 0; j < i; j++) {
System.out.print(" ");
}
for (int j = i; j <= n; j++) {
System.out.print(j + " ");
}
System.out.println();
}
for (int i = 1; i < n; i++) {
for (int j = n - 1; j >= i; j--) {
System.out.print(" ");
}
for (int j = n - i; j <= n; j++) {
System.out.print(j + " ");
}
System.out.println();
}
for (int i = 0; i < 2 * n; i++) {
int num = i;
int breakpoint = i;
if (i > n)
breakpoint = 2 * n - i;
for (int j = 1; j < breakpoint; j++) {
System.out.print(" ");
}
for (int j = 1; j <= breakpoint; j++) {
System.out.print(j + " ");
}
System.out.println();
}
}
}
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