Answers for "ways to print output through console in java"

how to print to console in java

//This is for printing in columns
System.out.println("Hello World!");

//This is for printing in rows
System.out.print("Hello World");

//When im using the double slash its to comment, also remember that you dont need to type Hello World! you can type everything you want
//By the way, you can also do:

int a = 1;
System.out.println(a);

//the result of this is "1" because a is equal to 1 so the programm whill get the data stored in "a" and print it, remember that you can also use "print" instead of "println" it works whit "vairables" too! (oh, the: int a  = 1; is a variable)

capture console output java

// Create a stream to hold the output
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(baos);
// IMPORTANT: Save the old System.out!
PrintStream old = System.out;
// Tell Java to use your special stream
System.setOut(ps);
// Print some output: goes to your special stream
System.out.println("Foofoofoo!");
// Put things back
System.out.flush();
System.setOut(old);
// Show what happened
System.out.println("Here: " + baos.toString());