Reverse String in JAVA

This is the method which will reverse the given STRING :





public void myOwnstringReversing(String str)
{
    for(int i=str.length()-1;i>=0;i--)
    {
        System.out.print(str.charAt(i));
    }
}









CONTENT WARNING:

This is my own program.. It is for Educational purposes only. Anyone do not republish in your website will be punished offensively.

Thread Program four in Java

public class Thread_Demo extends Thread{

public void run(){
System.out.println("Some text");
}
public static void main(String[] args) throws InterruptedException{


Thread_Demo t=new Thread_Demo();
Thread_Demo td1=new Thread_Demo();

t.start();

System.out.println("ISALIVE :"+t.isAlive());
t.sleep(500);
System.out.println("ISALIVE :"+t.isAlive());
//t.destroy();
t.resume();
System.out.println("ISALIVE :"+t.isAlive());
}

}

Thread Program three in Java

What is out put?

public class Thread_Demo extends Thread{

public void run(){

System.out.println("Some text");

}

public static void main(String[] args) throws InterruptedException {

Thread_Demo t=new Thread_Demo();

Thread_Demo td1=new Thread_Demo();

t.run();

System.out.println("ISALIVE :"+t.isAlive());

t.sleep(500);

System.out.println("ISALIVE :"+t.isAlive());

t.destroy();

System.out.println("ISALIVE :"+t.isAlive());

}

}

Thread Program Two in Java

What is output?


public class Thread_Demo extends Thread{

public void run(){
System.out.println("Some text");
}

public static void main(String[] args) throws InterruptedException {


Thread_Demo t=new Thread_Demo();
Thread_Demo td1=new Thread_Demo();

t.start();

System.out.println("ISALIVE :"+t.isAlive());
t.sleep(500);
System.out.println("ISALIVE :"+t.isAlive());
t.destroy();
System.out.println("ISALIVE :"+t.isAlive());
}

}

Thread Program in Java

What is out put?


public class Thread_Demo extends Thread{

public void run(){
System.out.println("Some text");
}

public static void main(String[] args) throws InterruptedException {


Thread_Demo td=new Thread_Demo();
Thread_Demo td1=new Thread_Demo();
/*Thread t=new Thread(td);*/
td.start();
td.setPriority(10);
System.out.println(td.getName()+td.getPriority());
td1.run();
System.out.println(td1.getName()+td1.getPriority());
}
}

File Creation in java

import java.io.File;
import java.io.IOException;

public class FileCreatin {

    public static void main(String args[]) throws IOException
    {
        File f=new File("F:/java.txt");
        if(!f.exists())
        {
            f.createNewFile();
            System.out.println("file created successfully");
        }
        else
            System.out.println("File already exists");
       
    }
}

Simple Java programs

1.
Question :
Given two non-negative int values, return true if they have the same last digit, such as with 27 and 57. Note that the % "mod" operator computes remainders, so 17 % 10 is 7.

Ans:
public boolean lastDigit(int a, int b) {
          int r=a%10;
        int r1=b%10;
        if(r==r1)
        {
            System.out.println(true);
        }  // These programs for educational purpose only. Dont copy and publish in your blog or website..
        else
            System.out.println(false);
}

2.

Question :Given 2 int values, return true if one is negative and one is positive. Except if the parameter "negative" is true, then return true only if both are negative.

Ans:
public boolean posNeg(int a, int b, boolean negative) {
  if((a<0&b>0&negative==false)|(a>0&b<0&negative==false))
        {
            System.out.println(true);
        }
        else if(a<0&b<0&negative==true)
            System.out.println(true); 
        else
            System.out.println(false);
} // These programs for educational purpose only. Dont copy and publish in your blog or website..


3.
 Question :
Given two temperatures, return true if one is less than 0 and the other is greater than 100.

icyHot(120, -1) → true
icyHot(-1, 120) → true
icyHot(2, 120) → false

Answer:
public boolean icyHot(int temp1, int temp2) {
  if((temp1<0&temp2>100)|(temp1>100&temp2<0))
        {
            System.out.println(true);
        }
        else
            System.out.println(false);
} // These programs for educational purpose only. Dont copy and publish in your blog or website..