writing string text pyramid pattern in java-CodePudding

I am new to android and trying to write this pyramid in java but it is not printing exactly.

i want to print like this

my code to write this is

  String searchQuery = "rooms in mumbai";

    int n = searchQuery.length();

    for (int i = 0; i<=n; i  )
    {
        for (int j = 0; j<=i-1; j  )
        {
            System.out.print(searchQuery.charAt(j));
        }
        System.out.println();
    }

but this printing this

r
ro
roo
room
rooms
rooms 
rooms i
rooms in
rooms in 
rooms in m
rooms in mu
rooms in mum
rooms in mumb
rooms in mumba
rooms in mumbai

As we can see it is priting some lines two times and I want the print to start from "roo" but it is printing from "r". Guide me how can i do that

CodePudding user response：

BE SIMPLE!!!

String str = "rooms in mumbai";

for (int i = 3; i <= str.length(); i  )
    if (str.charAt(i) != ' ')
        System.out.println(str.substring(0, i));

Output:

roo
room
rooms 
rooms i
rooms in 
rooms in m
rooms in mu
rooms in mum
rooms in mumb
rooms in mumba
rooms in mumbai

CodePudding user response：

To start printing from roo instead of r, change the outer loop

for (int i = 0; i<=n; i  )

into

for (int i = 3; i<=n; i  )

If you want to avoid/skip , just add this line after System.out.println()

if (j   1 < n && searchQuery.charAt(j 1).equals(" ")){
    i  ;
}

This will effectively skip printing new lines that simply have an extra space compared to the previous line

CodePudding user response：

To make it start from roo just simply make int i = 3