JavaTuples containsAll()方法

原文:https://www . geesforgeks . org/Java-元组-containsall-method/

org.javatuples 中的 containsAll() 方法用于检查 TupleClass 中是否存在作为参数给出的值集合。这个方法可以用于 javatuples 库的任何元组类对象。它返回一个布尔值，该值基于 TupleClass 中值集合的存在与否。

方法申报:

public final boolean containsAll(Object... value)

语法:

boolean result = TupleClassObject.containsAll(X value1, X value2, ...)
                    OR
boolean result = TupleClassObject.containsAll(X[] values)

参数:该方法以值或数值为参数，其中:

  • X–表示参数中值的数据类型。
  • TupleClassObject–表示像单位、五进制、十进制等使用的 JavaTuple 类对象。

返回值:如果元组中存在参数值，则该方法返回真。否则返回假

下面的程序说明了使用 containsAll()方法的各种方法:

程序 1: 使用 containsAll()搭配 Unit 类:

// Below is a Java program to use containsAll() method

import java.util.*;
import org.javatuples.Unit;

class GfG {
    public static void main(String[] args)
    {
        // Creating an Unit with one value
        Unit<String> unit = Unit.with("GeeksforGeeks");

        // Using containsAll() method

        boolean res;

        // for True result
        String[] check = { "GeeksforGeeks" };
        res = unit.containsAll(check);

        System.out.println("Is " + Arrays.toString(check) + " present : " + res);

        // for False result
        String[] check1 = { "Geeks", "for", "Geeks" };
        res = unit.containsAll(check1);

        System.out.println("Is " + Arrays.toString(check1) + " present : " + res);
    }
}

输出:

Is [GeeksforGeeks] present : true
Is [Geeks, for, Geeks] present : false

程序 2: 使用 containsAll()搭配 Decade 类:

// Below is a Java program to use containsAll() method

import java.util.*;
import org.javatuples.Decade;

class GfG {
    public static void main(String[] args)
    {
        // Creating a Decade with 10 value
        Decade<String, String, String, String, String,
               String, String, String, String, String>
            decade = Decade.with("Geeks",
                                 "for",
                                 "Geeks",
                                 "A",
                                 "Computer",
                                 "Science",
                                 "Portal",
                                 "for",
                                 "Geeks",
                                 "RishabhPrabhu");

        // Using containsAll() method
        boolean res;

        // for true result
        String[] check = { "Geeks", "for", "Geeks" };
        res = decade.containsAll(check);

        System.out.println("Is " + Arrays.toString(check) + " present : " + res);

        // for False result
        String[] check1 = { "Geeks", "not", "for", "Geeks" };
        res = decade.containsAll(check1);

        System.out.println("Is " + Arrays.toString(check1) + " present : " + res);
    }
}

输出:

Is [Geeks, for, Geeks] present : true
Is [Geeks, not, for, Geeks] present : false

注:同样，它也可以搭配任何其他 JavaTuple 类使用。

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