Pertama
import javax.swing.*;
public class tugas_bintang1 {
public static void main(String[] args){
int x;
x=Integer.valueOf(JOptionPane.showInputDialog("Masukan banyak bintang :"));
for(int i=1;i<=x;i++){
for(int j=1;j<=x;j++){
if(j<=i)
System.out.print("*");
else
System.out.print(" ");
}
System.out.println();
}
}
}
Output keluarnya…
run:
*
**
***
****
BUILD SUCCESSFUL (total time: 8 seconds)
Kedua
import javax.swing.*;
public class tugas_bintang2 {
public static void main(String[] args){
int baris,x,y;
baris=Integer.valueOf(JOptionPane.showInputDialog("Masukan banyak bintang :"));
x=baris+1;
for(int i=1;i<=baris;i++){
for(int j=1;j<=baris;j++){
y=i+j;
if(y<=x)
System.out.print("*");
else
System.out.print(" ");
}
System.out.println();
}
}
}
Outputnya adalah :
run:
****
***
**
*
BUILD SUCCESSFUL (total time: 5 seconds)
Ketiga
import javax.swing.*;
public class tugas_bintang3 {
public static void main(String[] args){
int baris,x,y;
baris=Integer.valueOf(JOptionPane.showInputDialog("Masukan banyak bintang :"));
x=baris+1;
for(int i=1;i<=baris;i++){
for(int j=1;j<=baris;j++){
y=i+j;
if(x<=y)
System.out.print("*");
else
System.out.print(" ");
}
System.out.println();
}}
}
Output keluarannya adalah :
run:
*
**
***
****
BUILD SUCCESSFUL (total time: 5 seconds)
Keempat
import javax.swing.*;
public class tugas_bintang4 {
public static void main(String[] args){
int baris;
baris=Integer.valueOf(JOptionPane.showInputDialog("Masukan banyak bintang :"));
for(int i=1;i<=baris;i++){
for(int j=1;j<=baris;j++){
if(i<=j)
System.out.print("*");
else
System.out.print(" ");
}
System.out.println();
}
}
}
Output keluarannya..
run:
****
***
**
*
BUILD SUCCESSFUL (total time: 4 seconds)
Kelima
public class tugas_bintang5 {
public static void main(String[] args){
int baris,m;
for(int i=1;i<=7;i++){
if(i<5){
for(int j=1;j<=4;j++){
if (j<=i)
System.out.print("*");
else
System.out.print(" ");
}
}
else {
for(int j=1;j<=4;j++){
m=i+j;
if(m<=8)
System.out.print("*");
else
System.out.print(" ");
}
}
System.out.println();
}
}
}
Output keluarannya
run:
*
**
***
****
***
**
*
BUILD SUCCESSFUL (total time: 0 seconds)
Keenam
public class tugas_bintang6 {
public static void main(String[] args){
int baris,m,x,y,n;
for(int i=1;i<=7;i++){
if(i<=4){
for(int j=1;j<=7;j++){
if(j<=4){
m=i+j;
if (5<=m)
System.out.print("*");
else
System.out.print(" ");
}
else {
x=j-3;
if(x<=i)
System.out.print("*");
else
System.out.print(" ");
}
}
}
else
for(int j=1;j<=7;j++){
if(j<=4){
y=i-3;
if(y<=j)
System.out.print("*");
else
System.out.print(" ");
}
else{
x=j-3;
y=i-3;
n=x+y;
if(n<=5)
System.out.print("*");
else
System.out.print(" ");
}
}
System.out.println();
}
}
}
Outputnya adalah…
run:
*
***
*****
*******
*****
***
*
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