time2solve: June 2015

Monday, June 22, 2015

Java Swap Parameter

package ArrayMethod;

import java.util.Arrays;

public class swapParameter {
    
    public static void main(String[] args) {
        int a[]={10,20,30};
        System.out.println(Arrays.toString(a));
        swapParameter(a,1,0);
        System.out.println(Arrays.toString(a));
    }

    private static void swapParameter(int[] a, int i, int j) {
        int temp=a[j];
        a[j]=a[i];
        a[i]=temp;
        
    }

}

Java _ toString

package ArrayMethod;

import java.util.Arrays;

public class toString {

    public static void main(String[] args) {
        int a[] = { 3, 4, 2, 1 };
        System.out.println(a); 
        System.out.println(Arrays.toString(a));
    }

}

Java–Array sort function

package ArrayMethod;

import java.util.Arrays;

public class Sort {

    public static void main(String[] args) {
        int[] a = { 3, 2, 4, 1 };
        Arrays.sort(a);
        for(int i=0;i<a.length;i++)
        {
            System.out.println(a[i]);
        }
        System.out.println(Arrays.toString(a));
        
        Arrays.sort(a);
        
        for(int i=0;i<a.length;i++)
        {
            System.out.println(a[i]);
        }

    }

}

Java–Array fill function

package ArrayMethod;

import java.util.Arrays;

public class fill {

    public static void main(String[] args) {
        int[] a = { 3, 4, 2, 1 };
        System.out.println(Arrays.toString(a));
        Arrays.fill(a, 9);
        System.out.println(Arrays.toString(a));
    }

}

Java–Array equals function

package ArrayMethod;

import java.util.Arrays;

public class equals {

    public static void main(String[] args) {
        int a[] = { 3, 4, 2, 1 };
        int b[] = { 3, 4, 2, 1 };
        int c[] = { 3, 4, 2 };
        System.out.println(Arrays.equals(a,b));
        System.out.println(Arrays.equals(a,c));
        
    }

}

Java-Array copy

package ArrayMethod;

public class Copy {

    
    public static void main(String[] args) {
        int[] a = { 1, 2, 3};
        int[] copy = a;

        for(int i=0;i<copy.length;i++)
        {
            System.out.println(copy[i]);
        }

    }

}

Java-fixed given

package Array;
import java.util.Scanner;

public class Size_fixed {
    public static void main(String[] args) {
        
        Scanner S =new Scanner(System.in);
        
        System.out.println("Enter size of integer number :");
        int n=S.nextInt();
        int a[]=new int[n];

        for(int i=0;i<a.length;i++)
    {
        a[i]=S.nextInt();
    }
    for(int i=0;i<a.length;i++)
    {
        System.out.println(a[i]);
    }
    
    }
    

}

Java - Fixed_size

package Array;

import java.util.Scanner;

public class Fixed_size {

    public static void main(String[] args) {
        int a[]=new int[5];
        
        Scanner S =new Scanner(System.in);
    System.out.println("Enter 5 integer number :");
        for(int i=0;i<a.length;i++)
    {
        a[i]=S.nextInt();
    }
    for(int i=0;i<a.length;i++)
    {
        System.out.println(a[i]);
    }
    
    }
    

}

Java-Array Return

package Array;

import java.util.Random;
import java.util.Scanner;

public class ArrayReturn {
    public static final Random random =new Random();
    public static int [] getarray(int a)
    {    
        int n[]=new int [a];
//        Scanner scanner=new Scanner(System.in);
//        for(int i=0;i<n.length;i++)
//        {
//            n[i]=scanner.nextInt();
//        }
        for(int i=0;i<n.length;i++)
        {
            n[i]=random.nextInt(100);
    }
        return n;
    }
    
    public static void main(String[] args) {
        int n;
        System.out.println("Enter size of array");
        Scanner scanner=new Scanner(System.in);
        n=scanner.nextInt();
        
        int b[]=getarray(n);
            for(int i=0;i<b.length;i++)
            {
                System.out.println(b[i]);
            }
        
    }

}

Java-Array different way

import java.util.Scanner;
 
public class ARRAYmain {
 
    public static void main(String[] args) {
//first way
//        int a[]=new int[100];
//        a[0]=10;
//        a[1]=11;
//        a[2]=12;
//        System.out.println(a[0]+" "+a[1]+" "+a[1]+" "+a[2]);
//second way
//        int b[]={10,20,30};
//        
//        System.out.println(b[0]+" "+b[1]+" "+b[1]+" ");
//third way
        
//        Scanner v = new Scanner(System.in);
//        int cc=10;
//        int c[]=new int [cc];
        
//forth way
        int d[]={10,20,30};
        
        for(int i=0;i<d.length;i++)
        {
            System.out.println(d[i]);
        }
    }
 
}

Saturday, June 20, 2015

Java–Input

using Scanner

package Normal;
import java.util.Scanner;

public class InputOutput {
    public static void main(String[] args) {
        System.out.println("Please Input : ");
        
        Scanner objScanner=new Scanner(System.in);
        
        int a =objScanner.nextInt();
        
        System.out.println(a);
    }

}