class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		int data1 = 5;
		double data2 = 100.001;
		String data3 = "Hello";
		int data4 = 25;
		String data5 = "World";
 
		StringBuilder sb = new StringBuilder();
 
		sb.append(data1);
		sb.append(data3);
 
		// to go to next line
		sb.append("\n");
 
		// append can be chained together
		sb.append(data2).append(data3).append(data5).append("\n");
 
		for(int i=0; i<2; i++)
			sb.append(i).append("*2 = ").append(i*2).append("\n");
 
		for(int i=2; i<4; i++)
			sb.append(i + "^2 = " + i*i + "\n");
 
		// print the StringBuffer at the end
		System.out.println(sb);
	}
}

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