sort array java
Here’s the java program to sort an array using Arrays.sort() method.
import java.util.Arrays;
public class JavaArraySortMethod
{
public static void main(String[] args)
{
String[] strGiven = {"Great Barrier Reef", "Paris", "borabora", "Florence","tokyo", "Cusco"};
Arrays.sort(strGiven);
System.out.println("Output(case sensitive) : " + Arrays.toString(strGiven));
}
}Arrays.sort() in java
// how to sort an array in java without using sort() method (ascending order)
public class WithoutSortMethod
{
public static void main(String[] args)
{
int temp;
int[] arrNumbers = {14, 8, 5, 54, 41, 10, 1, 500};
System.out.println("Before sort: ");
for(int num : arrNumbers)
{
System.out.println(num);
}
for(int a = 0; a < arrNumbers.length; a++)
{
for(int b = a + 1; b < arrNumbers.length; b++)
{
if(arrNumbers[a] > arrNumbers[b])
{
temp = arrNumbers[a];
arrNumbers[a] = arrNumbers[b];
arrNumbers[b] = temp;
}
}
}
System.out.println("---------------");
System.out.println("After sort: ");
for(int num : arrNumbers)
{
System.out.println(num);
}
}
}Arrays.sort() in java
// java sort arraylist
import java.util.ArrayList;
import java.util.Collections;
public class JavaSortArraylist
{
public static void main(String[] args)
{
ArrayList<String> al = new ArrayList<String>();
al.add("Bear");
al.add("Fox");
al.add("Deer");
al.add("Cheetah");
al.add("Anteater");
al.add("Elephant");
System.out.println("Before sorting ArrayList: " + al);
Collections.sort(al);
System.out.println("After sorting ArrayList in Ascending order: " + al);
}
}Arrays.sort() in java
// java sort array of objects
import java.util.Arrays;
public class Employee implements Comparable<Employee>
{
private String empName;
private int empAge;
public Employee(String name, int age)
{
this.empName = name;
this.empAge = age;
}
@Override
public String toString()
{
return "{" + "name='" + empName + '\'' + ", age=" + empAge + '}';
}
public String getName()
{
return empName;
}
public int getAge()
{
return empAge;
}
@Override
public int compareTo(Employee o)
{
if(this.empAge != o.getAge())
{
return this.empAge - o.getAge();
}
return this.empName.compareTo(o.getName());
}
}
public class SortArrayObjects
{
public static void main(String[] args)
{
Employee[] obj = { new Employee("virat", 25), new Employee("dhoni", 20),
new Employee("rohit", 22), new Employee("rahul", 24)};
Arrays.sort(obj);
System.out.println(Arrays.toString(obj));
}
}Copyright © 2021 Codeinu
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