package jp;

public class JP3 {

public static void main(String[] args) {

String var1,var2,var3,var4;

var1 = "java";

var2 = "test";

var3 = var1 + var2;

var4 = var3 + "AAA";

System.out.println("VAR3: "+ var3.toUpperCase());

System.out.println("VAR4: "+ var4.toLowerCase());

System.out.println(var4.length());

System.out.println("Index 2: "+ var3.charAt(2));

System.out.println("Index 5: " +var3.charAt(5));

System.out.println(var4.charAt(var4.length()-3));

System.out.println("VAR1 substr: " + var4.substring(0,4));

System.out.println("VAR2 substr: " + var4.substring(4,8));

}

}