ืžืขืจื›ื™ื ืคืฉื•ื˜ื™ื ื‘-Java ืื™ื ื ืžืฆื™ืขื™ื ืฉื•ื ืฉื™ื˜ื” ืœืขื“ื›ื•ืŸ ืื• ื”ื—ืœืคื” ืฉืœ ืืœืžื ื˜. ืขื ื–ืืช ื‘- ArrayList replace ื”ื•ื ื“ื™ ื ื•ื— ืœื™ื™ืฉื•ื ื‘ืืžืฆืขื•ืช ืฉื™ื˜ืช ื”ืกื˜ .

ื›ื•ืชืจืช ืฉื™ื˜ื”

arrayList.set(int index, dataType arrayListElement);

ืคืจืžื˜ืจื™ื

ื”ืฉื™ื˜ื” ืœื•ืงื—ืช 2 ืคืจืžื˜ืจื™ื.
  1. int index - ื”ืจืืฉื•ืŸ ื”ื•ื ื”ืื™ื ื“ืงืก ืฉืœ ื”ืืœืžื ื˜ ื‘- ArrayList .

  2. dataType arrayListElement - ื”ืคืจืžื˜ืจ ื”ืฉื ื™ ื”ื•ื ื”ื ืชื•ื ื™ื ืฉื™ืฉ ืœื”ื—ืœื™ืฃ ื‘ืื™ื ื“ืงืก ืฉืฆื•ื™ืŸ.

ืกื•ื’ ื”ื—ื–ืจื”

ื”ืฉื™ื˜ื” ืžื—ื–ื™ืจื” ืืช ืื•ืชื• ืืœืžื ื˜ ArrayList ืฉื–ื” ืขืชื” ื”ื•ื—ืœืฃ.

ื“ื•ื’ืžื” 1 - ื”ื—ืœืฃ ืืœืžื ื˜ ื‘ืฉื™ื˜ืช set()

import java.util.ArrayList;
import java.util.List;

public class DriverClass {

	public static void main(String[] args) {

		List <String> weekDays = new ArrayList<>();
		weekDays.add("Monday");
		weekDays.add("Monday");
		weekDays.add("Wednesday");
		weekDays.add("Thursday");
		weekDays.add("Friday");
		weekDays.add("Saturday");
		weekDays.add("Sunday");

		System.out.println("Week Days (original) : " + weekDays + "\n");

		String replacingText = "Tuesday";
		String replacedText = weekDays.set(1, replacingText);

		System.out.println("Replacing Text:  " + replacingText);
		System.out.println("Replaced Text:  " + replacedText + "\n");
		System.out.println("Week Days (updated) :  " + weekDays);
	}
}

ืชึฐืคื•ึผืงึธื”

ื™ืžื™ ืฉื‘ื•ืข (ืžืงื•ืจื™): [ืฉื ื™, ืฉื ื™, ืจื‘ื™ืขื™, ื—ืžื™ืฉื™, ืฉื™ืฉื™, ืฉื‘ืช, ืจืืฉื•ืŸ] ื”ื—ืœืคืช ื˜ืงืกื˜: ื˜ืงืกื˜ ืžื•ื—ืœืฃ ื‘ื™ื•ื ืฉื ื™: ื™ืžื™ ืฉื‘ื•ืข ืฉื ื™ (ืžืขื•ื“ื›ื ื™ื) : [ืฉื ื™, ืฉืœื™ืฉื™, ืจื‘ื™ืขื™, ื—ืžื™ืฉื™, ืฉื™ืฉื™, ืฉื‘ืช, ืจืืฉื•ืŸ]

ื”ึถืกื‘ึผึตืจ

ื‘ืงื˜ืข ืฉืœืžืขืœื”, ื™ืžื™ ื—ื•ืœ ืžืชื•ื•ืกืคื™ื ื‘ืจืฉื™ืžืช ืžืขืจืš ื‘ืžืงื•ืจ. ืขื ื–ืืช, ื™ื•ื ืฉื ื™ ื ื•ืกืฃ ืคืขืžื™ื™ื ื•ื™ื•ื ืฉืœื™ืฉื™ ื—ืกืจ. ืื–, ืื ื—ื ื• ืžื—ืœื™ืคื™ื ืื•ืชื• ืขื“ ื™ื•ื ืฉืœื™ืฉื™ ื‘ืžื“ื“ ื”ืจืืฉื•ืŸ. ื–ื” ื ืขืฉื” ืขืœ ื™ื“ื™ ืฉื™ืžื•ืฉ ื‘ืฉื™ื˜ืช set() . ื”ื™ื›ืŸ ืขื•ื‘ืจื™ื ืื™ื ื“ืงืก "1" ื•ื”ื—ืœืคืช ื˜ืงืกื˜ ื›ืœื•ืžืจ "ื™ื•ื ืฉืœื™ืฉื™". ืžืื•ื—ืจ ื™ื•ืชืจ, ืื ื• ืžื“ืคื™ืกื™ื ืืช ArrayList ื‘ืงื•ื ืกื•ืœื” ื›ื“ื™ ืœืจืื•ืช ืืช ื”ืขื“ื›ื•ื ื™ื.

ื“ื•ื’ืžื” 2

import java.util.ArrayList;
import java.util.List;

public class DriverClass1 {

	public static void main(String[] args) {

		List<Integer> dieRoll = new ArrayList<>();

		dieRoll.add(0);
		dieRoll.add(1);
		dieRoll.add(2);
		dieRoll.add(3);
		dieRoll.add(4);
		dieRoll.add(5);

		System.out.println("Die Roll (original) : " + dieRoll + "\n");

		dieRoll.set(0, 1);
		dieRoll.set(1, 2);
		dieRoll.set(2, 3);
		dieRoll.set(3, 4);
		dieRoll.set(4, 5);
		dieRoll.set(5, 6);

		System.out.println("Die Roll (updated) :  " + dieRoll);
	}
}

ืชึฐืคื•ึผืงึธื”

Die Roll (ืžืงื•ืจื™): [0, 1, 2, 3, 4, 5] Die Roll (ืžืขื•ื“ื›ืŸ) : [1, 2, 3, 4, 5, 6]

ืกื™ื›ื•ื

ืขื“ ืขื›ืฉื™ื• ืืชื” ืืžื•ืจ ืœื”ื›ื™ืจ ืืช ื”ื—ืœืคืช ืืœืžื ื˜ ื‘- ArrayList ื‘ืืžืฆืขื•ืช ืฉื™ื˜ืช set() ื‘-Java. ื›ื“ื™ ืœื”ื™ื•ืช ื‘ื˜ื•ื— ื™ื•ืชืจ ื‘ืœืžื™ื“ื” ืฉืœืš ื ืกื” ืœืชืจื’ืœ ืื•ืชื” ืฉื•ื‘ ื•ืฉื•ื‘. ืชืจื’ื™ืฉ ื—ื•ืคืฉื™ ืœื—ื‘ืจ ืžื—ื“ืฉ ืžืชื™ ืฉืžืชื—ืฉืง ืœืš. ื‘ื”ืฆืœื—ื” ื•ืœืžื™ื“ื” ืžื”ื ื”!