java - Printing Stars based on input from Command Prompt -

I have been assigned a project to print the pattern of stars with bee, we are assuming that the number given in the CMD And it will print a pattern. Or at least this is how I understand it.

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What the assignment says:

Take a numerical input from the command line and produce the correct number of wires and rows.

Example:

  C: \ Java will generate stars 3  

,

  * * * ***  

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So far my code is:

  public square stars 1 int len ​​= args. Length; If (lane and lt; = 0) {System.out.println ("Error: input value of 1-5"); System.exit (0); } At Jay; For (int i = 0; i & lt; = 4; i ++) {for (j = 0; j & lt; = i; j ++) System.out.print ("*"); Println (""); }}}  

I am trying to create a pattern:

  * ** *** **** *****  

The example code he showed us was used to type args.length using the command prompt at any time. So if we type in the C: \ Java Echo I type, then type it. This will type I type, this type.

This is the code he asked us to look for:

  public class echo {public static zero sopl (string str) {System.out.println ( "\ T" + str); } Public static zero (string str) {System.out.print (str); } Public static zero main (string [] args) {int len ​​= args.length; If (lane == 0) {soap ("\ n \ tUsage: java echo and lt; args: string []> gt;"); System.exit (0); } Soap ("\ n \ t"); For (int i = 0; i  gt) soap (rg [args.length - len--] + ""); Soap (""); }  

How do I use args.length to create patterns? I can easily produce patterns without taking the input pattern to the command line. public class stars 1 {public static zero main (string [] args) {System.out.println ("do not enter any of the rows to print"); Int row = integer Paracet (Argos [0]); Int len ​​= args.length; If (lane and lt; = 0) {System.out.println ("Error: input value of 1-5"); System.exit (0); } At Jay; For (int i = 0; i & lt; = rows; i ++) {for (j = 0; j & lt; = i; j ++) System.out.print ("*"); Println (""); }}}