why cant I print things in java code example

Example 1: print in java

//print and create new line after
System.out.println("text");
System.out.println(String);
//You can use any variable type, not just strings, although
//they are the most common

//Print without creating a new line
System.out.print("text");
System.out.print(String);

Example 2: how do you print code in java

System.out.print(46); // prints on the same line
System.out.println("Tree"); // prints code on a new line