2 import java.util.Vector;
4 class BlockNode extends TreeNode {
5 Vector blockstatements;
7 blockstatements=new Vector();
10 public void addBlockStatement(BlockStatementNode bsn) {
11 blockstatements.add(bsn);
14 public String printNode() {
16 for(int i=0;i<blockstatements.size();i++) {
17 BlockStatementNode bsn=(BlockStatementNode)blockstatements.get(i);
18 st+=bsn.printNode()+"\n";