public static void main(String arg[]){
int nNum1=6;
int nNum2=8;
System.out.println();
System.out.print(((nNum1<nNum2) &&(--nNum1)>nNum2));
System.out.println(((nNum1<nNum2) &&(--nNum1)>nNum2));
}

public class Test3 {
public static void main(String args[]) {
int a=4,b=6,c=8;
String s="abc";
System.out.println(a+b+s+c);
}
}

程序的运行结果是

public class ForLoopStatement {
public static void main(String[] args) {
int i,j;
for (i=1;i<5;i++) {
for (j=1;j<=i;j++)
System.out.print (i+" * "+j+" = "+i*j+" ");
System.out.println();
}
}
}
程序执行完成后，i 循环和 j 循环的执行次数分别是

//swap 方法的声明
public static void swap (int a,int b){
int t=a;
a=b;
b=t;
}
//main 方法
public static void main (String args []){
int x=2;
int y=3;
swap (x,y);
}