Find all Substrings of a given string Example Java Program

Definition

A string is traditionally a sequence of characters, either as a literal constant or as some kind of variable. The latter may allow its elements to be mutated and the length changed, or it may be fixed (after creation). A string is generally understood as a data type and is often implemented as an array of bytes (or words) that stores a sequence of elements, typically characters, using some character encoding. A string may also denote more general arrays or other sequence (or list) data types and structures.

Syntax

public String substring(datatype beginIndex)

Or

public String substring(datatype beginIndex, datatype endIndex)

Find all Substrings of a given string Example Program

import java.util.Scanner;
class AllSubstrings{
	public static void main(String args[]){
		String str1, str2;
		int length;
		Scanner in = new Scanner(System.in);
		System.out.println("Enter a string to find its sub-strings");
		str1  = in.nextLine();
		length = str1.length();   
		System.out.println("Sub-strings of the string \""+str1+"\" are");
		for(int c = 0 ; c < length ; c++ ){
			for(int i = 1 ; i <= length - c ; i++ ){
				str2 = str1.substring(c, c+i);
				System.out.println(str2);
			}
		}
	}
}

Sample Output

Output is:
Enter a string to find its sub-strings
shore
Sub-strings of the string "shore" are
s
sh
sho
shor
shore
h
ho
hor
hore
o
or
ore
r
re
e

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