pattern(Butterfly)
package patterns;
//BUTTERFLY
public class p10A {
public static void main(String[] ags) {
int n = 4;
// 1ST HALF
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= i; j++) {
System.out.print("*");
}
int sp = 2 * (n - i);
for (int j = 1; j <= sp; j++) {
System.out.print(" ");
}
for (int j = 1; j <= i; j++) {
System.out.print("*");
}
System.out.println();
}
// 2ND HALF
for (int i = n; i > 0; i--) {
for (int j = 1; j <= i; j++) {
System.out.print("*");
}
int sp = 2 * (n - i);
for (int j = 1; j <= sp; j++) {
System.out.print(" ");
}
for (int j = 1; j <= i; j++) {
System.out.print("*");
}
System.out.println();
}
}
}
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