如何在 Java 中从向量中找到最小或最大元素？
集合 是 Java 提供的一个框架，它提供了一个存储一组对象的架构。Vector()就是这样一个集合。有许多方法可以找到向量中的最小和最大元素。下面讨论了这些方法:
方法:
- 使用collection . min()T3】和 收藏。max() 方法。
- Use the iterative vector element to set the minimum-maximum value.
方法 1:使用 Collections.min()和 Collections.max()方法
Collections 包提供了一种在集合中查找最小值和最大值的静态方法。这些方法是 Collections.max()和 Collections.min()。
- Collections.max()查找最大元素
- Collections.min()查找集合中的最小元素。
示例
Java
// Java Program to Find minimum and maximum elements
// from a Vector
// Importing all classes of
// java.util package
import java.util.*;
// Class to find min and max
class GFG {
// Main driver method
public static void main(String[] args)
{
// Creating(defining) a Vector
Vector<Integer> V = new Vector<Integer>();
// Add elements in Vector
// Custom inouts
V.add(1);
V.add(2);
V.add(3);
V.add(4);
V.add(5);
// Printing all elements of vector
System.out.println("Vector elements : " + V);
// Using inbuilt function to
// find minimum number
// using Collection.min() method
int minNumber = Collections.min(V);
// find maximum number
// using Collection.max() method
int maxNumber = Collections.max(V);
// Print max element of the vector
System.out.println("Maximum Number in Vector is : "
+ maxNumber);
// Print min element of th vector
System.out.println("Minimum Number in Vector is : "
+ minNumber);
}
}
输出
Vector elements : [1, 2, 3, 4, 5]
Maximum Number in Vector is : 5
Minimum Number in Vector is : 1
方法 2: 使用迭代向量元素设置最小值-最大值。
进场:
- Take a variable and say minNumber, and initialize it to the maximum value before comparing and updating it.
- Take a variable and say maxNumber, and then initialize it to the minimum value for comparison and update.
- Traverse the Vector and compare each element with the above bivariate–
- 最小数字
- 最大数量
- Update the value of minNumber if the number is less than minNumber.
- Update the value of maxNumber if the value is greater than maxNumber.
示例
Java
// Java Program to Find minimum and maximum elements
// from a Vector
// Importing all classes of
// java.util package
import java.util.*;
// Importing Integer Wrapper class for
// primitive data type
import java.lang.Integer;
// Clas
class GFG {
// Main driver method
public static void main(String[] args)
{
// Assign maximum value to minValue Variable
int minValue = Integer.MAX_VALUE;
// Assign minimum value to maxValue Variable
int maxValue = Integer.MIN_VALUE;
// Creating a Vector
Vector<Integer> V = new Vector<Integer>();
// Adding elements into Vector
// Custom inputs
V.add(100);
V.add(30);
V.add(7);
V.add(24);
V.add(13);
System.out.println("Vector elements : "+V);
// For-each loop to traverse through vector
// If element is present in vector
for (Integer i : V) {
// if greater than maxValue, then update
if (i > maxValue) {
maxValue = i;
}
// if less than minValue, then update
if (i < minValue) {
minValue = i;
}
}
// Print maximum element in the Vector
System.out.println("Maximum Element in Vector : "
+ maxValue);
// Print minimum element in the vector
System.out.println("Minimum Element in Vector : "
+ minValue);
}
}
输出
Vector elements : [100, 30, 7, 24, 13]
Maximum Element in Vector : 100
Minimum Element in Vector : 7
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