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jagdish
answered Nov 30 '-1 00:00
to place component like JScrollPane in AWT container object , we need to group it for layout . to group GroupLayout is used , one can configure GroupLayout in horizontal and vertical group.
by java docs ::
GroupLayout
GroupLayout is a LayoutManager that hierarchically groups components in order to position them in a Container.
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane() return
Abstract Window Toolkit(AWT) container object.
GroupLayout take host(container) as argument.
GroupLayout define layout of component , its reponsible for order of component
GroupLayout have setHorizontalGroup and setVerticalGroup method which define the order of the horizontal and vertical.
working example code
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.creat
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 234, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 375, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 275, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 61, Short.MAX_VALUE))
.addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 0, Short.MAX_VALUE)
);