Need help with simple loops

Question

Hi I am having a very very difficult time. for thos that have it I'm using the Intro to Java Programming 6th Edition by Y.Daniel Liang Book. I am on page 124 Ch 4 Problem 4.18
what it wants you to do is make and use nested loops that print
Pattern 1
1
12
123
1234
12345
123456
Pattern 2
123456
12345
1234
123
12
1
Patern 3
1
21
321
4321
54321
654321 ( I know this is crooked but you get the idea )
Pattern 4
123456
12345
1234
123
12
1 (once again crooked but you get the idea )
Ok so here is my code thus for and it includes pattern 1 and pattern 2...Keep in mind I'm just simply printing them out one right after the other..it doesnt have to look all pretty or nothing like that ok...thanks
public class Patterns
// Print Pattern I */
public static void main(String[] args)
for (int i = 1; i <= 6; i++)
for (int j = 1; j <= i; j++) ( NESTED FOR STATMENT)
          System.out.print(j + " ");
     System.out.println();
// Print Patter II
     for ( int i = 6 ; i >=1; i--)
          for ( int j = 1; j <= i; j++) (NESTED FOR STATMENT )
               System.out.print ( j + " ") ;
          System.out.println();
If yall could somehow give me hints as to how to get number 3 and number 4 thanks
-tim-

Answer 1

package src;
public class Escada {
    public Escada(){
        System.out.println("Pattern1");
        for (Integer i = 1; i <= 6; i++){
            for (Integer j = 1; j <= i; j++){
                System.out.print(j);
            System.out.println("");
        System.out.println("--------\nPattern2");
        for (Integer i = 6; i >= 1; i--){
            for (Integer j = 1; j <= i; j++){
                System.out.print(j);
            System.out.println("");
        System.out.println("--------\nPattern3");
        for (Integer i = 1; i <= 6; i++){
            for (Integer j = i; j >=1; j--){
                System.out.print(j);
            System.out.println("");
        System.out.println("--------\nPattern4");
        for (Integer i = 6; i >= 1; i--){
            for(Integer j = 1; j <= i; j++){
                System.out.print(j);
            System.out.println("");
    public static void main(String[] args) {
        new Escada();