java-code-example/ArraySlice/src/arrayslice/Main.java at master · cherkavi/java-code-example · GitHub

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package arrayslice;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.LinkedList;

/**

* @author cherkashinv

public class Main {

/**

* @param args the command line arguments

public static void main(String[] args) {

// check String.equalsIgnoreCase

//String value="true";

//System.out.println(value.equalsIgnoreCase("True"));

byte[] test=new byte[]{10,20,30};

print_array(test);

//print_array(appendBytesToBytes(test,test,test));

check_array(test);

print_array(test);

byte[] test=new byte[]{10,20,30,40,50,60,70};

print_array(Arrays.copyOf(test, 3));

print_array(test);

print_array(Arrays.copyOfRange(test, 3, test.length));

//volatile_class_example();

LinkedList<Integer> list=new LinkedList<Integer>();

for(int counter=0;counter<10;counter++){

list.add(new Integer(counter));

}

list=new LinkedList(list.subList(4+1, 10));

for(int counter=0;counter<list.size();counter++){

System.out.println(list.get(counter));

}

private static void volatile_class_example(){

class Temp{

private String field_name;

public Temp(){

this.field_name="";

}

public Temp(String value){

this.field_name=value;

}

public String getValue(){

return this.field_name;

}

Temp temp_value=new Temp(">>> value ");

System.out.println(temp_value.getValue());

}

private static void print_array(byte[] array){

System.out.println(array+":");

for(int counter=0;counter<array.length;counter++){

System.out.print(array[counter]+"; ");

}

System.out.println();

}

public static void check_array(byte[] array){

System.out.println(">>>>before:");

print_array(array);

array=appendBytesToBytes(array,array);

System.out.println(">>>>after:");

print_array(array);

}

/** получить массив, который является результатом сложения всех массивов */

public static byte[] appendBytesToBytes(byte[] ...elements){

int position=0;

int array_length=0;

// create return array

for(int index=0;index<elements.length;index++){

if(elements[index]!=null){

array_length+=elements[index].length;

}else{

// current element is null

}

byte[] return_value=new byte[array_length];

// copy

for(int index=0;index<elements.length;index++){

if(elements[index]!=null){

for(int counter=0;counter<elements[index].length;counter++){

return_value[position]=elements[index][counter];

position++;

}

}else{

// current element is null

}

return return_value;

}

java-code-example/ArraySlice/src/arrayslice/Main.java at master · cherkavi/java-code-example · GitHub

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