Java Get Substring Between Two Indexes

Question

For example I have this string: Hello, world! and I want to get Hello by using indexes. Is there a function like

package com.example;

import static java.lang.String.getStringBetweenIndex;

public class Example {
    public static void main(String[] args) {
        String hello = "Hello, world!";

        System.out.println(hello.getStringBetweenIndex(0, 5));
    }
}

that gives output Hello?

You titled and tagged this question substring, have you tried that? — Federico klez Culloca
– Federico klez Culloca, Commented Dec 30, 2020 at 13:22

maDeveloper · Accepted Answer · 2020-12-30 13:37:10Z

2

You can use *.substring(firstIndex, secondIndex); method for that. Try;

package com.example;

public class Example {
    public static void main(String[] args) {
        String hello = "Hello, world!";

        System.out.println(hello.substring(0, 5));
    }
}

Returns a string that is a substring of this string. The substring begins at the specified beginIndex and extends to the character at index endIndex - 1. Thus the length of the substring is endIndex-beginIndex. Examples:

"hamburger".substring(4, 8) returns "urge"
"smiles".substring(1, 5) returns "mile"

Parameters:

beginIndex - the beginning index, inclusive.
endIndex - the ending index, exclusive.

Returns:

the specified substring.

Throws:

IndexOutOfBoundsException - if the beginIndex is negative, or endIndex is larger than the length of this String object, or beginIndex is larger than endIndex.

Source: https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html#substring(int,int)

edited Dec 30, 2020 at 13:37

answered Dec 30, 2020 at 13:25

maDeveloper

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1 Comment

Muhammet DÜLGER Over a year ago

Nice, a good answer with documentation link.

charlie · Accepted Answer · 2020-12-30 13:28:16Z

2

public String substring(int beginIndex, int endIndex)

Returns a string that is a substring of this string. The substring begins at the specified beginIndex and extends to the character at index endIndex - 1. Thus the length of the substring is endIndex-beginIndex. Examples:

"hamburger".substring(4, 8) returns "urge"
"smiles".substring(1, 5) returns "mile"

Parameters:

beginIndex - the beginning index, inclusive.
endIndex - the ending index, exclusive.

Returns:

the specified substring.

Throws:

IndexOutOfBoundsException - if the beginIndex is negative, or endIndex is larger than the length of this String object, or beginIndex is larger than endIndex.

Source: https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html#substring(int,int)

answered Dec 30, 2020 at 13:28

charlie

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1 Comment

Muhammet DÜLGER Over a year ago

Thank you! It really helps.

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